fix: stopLevel hysteresis works — bump rotatingMachine + MGC

Pump-shutdown deadlock fix split across two submodules:

- rotatingMachine@8f9150e: shutdown sequence clears state.delayedMove
  so the abort-and-return-to-operational path doesn't auto-pickup the
  queued setpoint and re-engage the pump.
- machineGroupControl@ea2857f: turnOffAllMachines clears MGC's
  _delayedCall and serializes per-pump shutdown so PS's 2 s tick loop
  can't interrupt an in-flight shutdown.

Live verification on pumpingstation-complete-example demo: basin now
shuts pumps off at stopLevel cleanly, reverses to fill, completes the
hysteresis cycle.

Also disable the trends page in the demo flow (build_flow.py + regen
flow.json). FlowFuse ui-chart's per-series server-side history buffer
(7 charts × ~20 series × 3600-point retention) was saturating the
Node-RED event loop at 129% CPU, making the dashboard freeze on every
click. Trends remain available — just disabled by default; flip the
ui_page_trends "d" key to false to re-enable.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

examples/pumpingstation-complete-example/build_flow.py

@@ -211,6 +211,7 @@ def dashboard_scaffold():
         "layout": "grid", "theme": "ui_theme",
         "breakpoints": [{"name": "Default", "px": "0", "cols": "12"}],
         "order": 2, "className": "",
+        "d": True,
     }
     return [base, theme, page_realtime, page_trends]
 

examples/pumpingstation-complete-example/flow.json

@@ -2,15 +2,15 @@
   {
     "id": "tab_process",
     "type": "tab",
-    "label": "\ud83c\udfed Process Plant",
+    "label": "🏭 Process Plant",
     "disabled": false,
-    "info": "EVOLV plant model: 3 rotatingMachines (each with 4 measurement nodes \u2014 upstream P, downstream P, flow, power), MGC, PS.\n\nPer pump there is a 'physics' function node that consumes the pump's own port-0 stream PLUS PS port-0 (basin level) and drives all 4 measurement nodes with physically-coupled values (upstream P from basin head; downstream P from pump state + flow; flow/power mirror predicted with Gaussian noise). This lives on this tab so the plant model is self-contained.\n\nAll cross-tab wires use named link-in / link-out channels."
+    "info": "EVOLV plant model: 3 rotatingMachines (each with 4 measurement nodes — upstream P, downstream P, flow, power), MGC, PS.\n\nPer pump there is a 'physics' function node that consumes the pump's own port-0 stream PLUS PS port-0 (basin level) and drives all 4 measurement nodes with physically-coupled values (upstream P from basin head; downstream P from pump state + flow; flow/power mirror predicted with Gaussian noise). This lives on this tab so the plant model is self-contained.\n\nAll cross-tab wires use named link-in / link-out channels."
   },
   {
     "id": "c_process_title",
     "type": "comment",
     "z": "tab_process",
-    "name": "\ud83c\udfed PROCESS PLANT \u2014 EVOLV nodes + per-pump physics feeders",
+    "name": "🏭 PROCESS PLANT — EVOLV nodes + per-pump physics feeders",
     "info": "",
     "x": 640,
     "y": 20,
@@ -20,7 +20,7 @@
     "id": "c_pump_a",
     "type": "comment",
     "z": "tab_process",
-    "name": "\u2500\u2500 Pump A \u2500\u2500 (pump + 4 sensors + physics feeder)",
+    "name": "── Pump A ── (pump + 4 sensors + physics feeder)",
     "info": "Up/Dn pressure + flow + power sensors register as children of the pump. The physics_<pump> function takes the pump's own port-0 stream and PS port-0 (basin level) and drives all 4 sensors with physically-coupled values.",
     "x": 640,
     "y": 80,
@@ -55,7 +55,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "upstream",
-    "positionIcon": "\u2192",
+    "positionIcon": "→",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -114,7 +114,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "downstream",
-    "positionIcon": "\u2190",
+    "positionIcon": "←",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -173,7 +173,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "downstream",
-    "positionIcon": "\u2190",
+    "positionIcon": "←",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -232,7 +232,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "atEquipment",
-    "positionIcon": "\u22a5",
+    "positionIcon": "⊥",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -288,7 +288,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "atEquipment",
-    "positionIcon": "\u22a5",
+    "positionIcon": "⊥",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -326,7 +326,7 @@
     "type": "function",
     "z": "tab_process",
     "name": "format Pump A port 0",
-    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle dashboard fan-out to \u2264 2 Hz. The pump emits on\n// every state change (multiple per sec while cycling); the\n// dashboard doesn't need that resolution and the websocket\n// fan-out chokes the browser.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst flow  = find('flow.predicted.downstream.');\nconst power = find('power.predicted.atequipment.');\nconst ctrl  = find('ctrl.predicted.atequipment.');\nconst pUp   = find('pressure.measured.upstream.');\nconst pDn   = find('pressure.measured.downstream.');\nmsg.payload = {\n  state: c.state || 'idle',\n  mode:  c.mode  || 'auto',\n  ctrl:  ctrl  != null ? Number(ctrl ).toFixed(1) + '%' : 'n/a',\n  flow:  flow  != null ? Number(flow ).toFixed(1) + ' m\u00b3/h' : 'n/a',\n  power: power != null ? Number(power).toFixed(2) + ' kW' : 'n/a',\n  pUp:   pUp   != null ? Number(pUp  ).toFixed(0) + ' mbar' : 'n/a',\n  pDn:   pDn   != null ? Number(pDn  ).toFixed(0) + ' mbar' : 'n/a',\n  ctrlNum:  ctrl  != null ? Number(ctrl ) : null,\n  flowNum:  flow  != null ? Number(flow ) : null,\n  powerNum: power != null ? Number(power) : null,\n  pUpNum:   pUp   != null ? Number(pUp  ) : null,\n  pDnNum:   pDn   != null ? Number(pDn  ) : null,\n  // Pump is moving water any time it's between startup and shutdown, not\n  // just during steady operational. accelerate/decelerate/warmup count.\n  isRunning: ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(c.state),\n};\nreturn msg;",
+    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle dashboard fan-out to ≤ 2 Hz. The pump emits on\n// every state change (multiple per sec while cycling); the\n// dashboard doesn't need that resolution and the websocket\n// fan-out chokes the browser.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst flow  = find('flow.predicted.downstream.');\nconst power = find('power.predicted.atequipment.');\nconst ctrl  = find('ctrl.predicted.atequipment.');\nconst pUp   = find('pressure.measured.upstream.');\nconst pDn   = find('pressure.measured.downstream.');\nmsg.payload = {\n  state: c.state || 'idle',\n  mode:  c.mode  || 'auto',\n  ctrl:  ctrl  != null ? Number(ctrl ).toFixed(1) + '%' : 'n/a',\n  flow:  flow  != null ? Number(flow ).toFixed(1) + ' m³/h' : 'n/a',\n  power: power != null ? Number(power).toFixed(2) + ' kW' : 'n/a',\n  pUp:   pUp   != null ? Number(pUp  ).toFixed(0) + ' mbar' : 'n/a',\n  pDn:   pDn   != null ? Number(pDn  ).toFixed(0) + ' mbar' : 'n/a',\n  ctrlNum:  ctrl  != null ? Number(ctrl ) : null,\n  flowNum:  flow  != null ? Number(flow ) : null,\n  powerNum: power != null ? Number(power) : null,\n  pUpNum:   pUp   != null ? Number(pUp  ) : null,\n  pDnNum:   pDn   != null ? Number(pDn  ) : null,\n  // Pump is moving water any time it's between startup and shutdown, not\n  // just during steady operational. accelerate/decelerate/warmup count.\n  isRunning: ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(c.state),\n};\nreturn msg;",
     "outputs": 1,
     "noerr": 0,
     "initialize": "",
@@ -357,8 +357,8 @@
     "id": "physics_pump_a",
     "type": "function",
     "z": "tab_process",
-    "name": "physics Pump A \u2192 4 sensors",
+    "name": "physics Pump A → 4 sensors",
-    "func": "const c = context.get('c') || {};\nfunction find(o, prefix) {\n  for (const k in o) { if (k.indexOf(prefix) === 0) return o[k]; }\n  return null;\n}\nfunction gauss(sigma) {\n  let s = 0;\n  for (let i = 0; i < 12; i++) s += Math.random();\n  return (s - 6) * sigma;\n}\n\nif (msg.from === 'ps') {\n  const psSnap = c.ps || {};\n  Object.assign(psSnap, msg.payload || {});\n  c.ps = psSnap;\n  const lvl = find(psSnap, 'level.predicted.atequipment.')\n          ?? find(psSnap, 'level.measured.atequipment.');\n  if (lvl != null) c.basinLevel = Number(lvl);\n  context.set('c', c);\n  return null;\n}\n\nconst pumpSnap = c.pump || {};\nObject.assign(pumpSnap, msg.payload || {});\nc.pump = pumpSnap;\ncontext.set('c', c);\n// Throttle: 1 Hz sensor updates are plenty for the demo; the\n// pump emits on every state change (5+/sec while cycling).\nconst _now = Date.now();\nconst _last = context.get('_lastEmit') || 0;\nif (_now - _last < 1000) return null;\ncontext.set('_lastEmit', _now);\n\nconst state = pumpSnap.state || 'idle';\n// 'isRunning' = the rotor is spinning (any non-idle, non-cooled state).\n// MGC retargets flow on every tick, so the pump spends most of its\n// time in 'accelerating' or 'decelerating', not 'operational'. Those\n// transient states are still moving water \u2014 flow/power sensors must\n// publish non-zero values during them or the measurement nodes go\n// quiet (formatMsg skips emits on no-diff).\nconst isRunning = ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(state);\n// 'pumpFlow' (not 'flow') \u2014 `flow` is the Node-RED flow-context object.\nconst pumpFlow  = Number(find(pumpSnap, 'flow.predicted.downstream.'));\nconst pumpPower = Number(find(pumpSnap, 'power.predicted.atequipment.'));\nconst basinLevel = c.basinLevel != null ? Number(c.basinLevel) : 0;\n\n// Publish this pump's contribution to the flow-context shared\n// header so the other physics feeders can compute total flow.\nflow.set('pump_flow_a', isRunning && Number.isFinite(pumpFlow) ? pumpFlow : 0);\nflow.set('pump_flow_a_state', state);\nconst flowA = Number(flow.get('pump_flow_a') || 0);\nconst flowB = Number(flow.get('pump_flow_b') || 0);\nconst flowC = Number(flow.get('pump_flow_c') || 0);\nconst totalFlow = flowA + flowB + flowC;\n\nconst HEAD_M = Math.max(0, basinLevel - 0.3);\n// Suction (basin) header pressure \u2014 same physical value for all\n// pumps; per-pump sensor noise added independently.\nconst p_upstream_clean = 98.1 * HEAD_M;\nlet p_upstream = Math.max(0, p_upstream_clean + gauss(2.5));\n\n// Discharge (header) pressure \u2014 driven by TOTAL flow leaving the\n// manifold, NOT this pump's individual flow. Static head 12 m\n// + quadratic system curve scaled so totalFlow=300 m\u00b3/h gives\n// ~full dynamic head.\nconst STATIC_MBAR = 12 * 98.1;\nconst DYN_MBAR_MAX = 12 * 98.1;\nconst TOTAL_FLOW_MAX = 300;\nconst ratio = Math.min(1, totalFlow / TOTAL_FLOW_MAX);\nconst p_downstream_header = STATIC_MBAR + ratio * ratio * DYN_MBAR_MAX;\n// Publish the clean header value to flow context so the MGC's\n// header-pressure measurement child can read it.\nflow.set('header_p_downstream', p_downstream_header);\nflow.set('header_p_upstream',   p_upstream_clean);\n// Per-pump downstream sensor: header value with local sensor noise.\nlet p_downstream = Math.max(0, p_downstream_header + gauss(8));\n\nconst flowMeas = (isRunning && Number.isFinite(pumpFlow))\n  ? Math.max(0, pumpFlow + gauss(Math.max(0.5, pumpFlow * 0.01)))\n  : 0;\n\nconst powerMeas = (isRunning && Number.isFinite(pumpPower))\n  ? Math.max(0, pumpPower + gauss(Math.max(0.05, pumpPower * 0.005)))\n  : 0;\n\nreturn [\n  { topic: 'measurement', payload: p_upstream },\n  { topic: 'measurement', payload: p_downstream },\n  { topic: 'measurement', payload: flowMeas   },\n  { topic: 'measurement', payload: powerMeas  },\n];\n",
+    "func": "const c = context.get('c') || {};\nfunction find(o, prefix) {\n  for (const k in o) { if (k.indexOf(prefix) === 0) return o[k]; }\n  return null;\n}\nfunction gauss(sigma) {\n  let s = 0;\n  for (let i = 0; i < 12; i++) s += Math.random();\n  return (s - 6) * sigma;\n}\n\nif (msg.from === 'ps') {\n  const psSnap = c.ps || {};\n  Object.assign(psSnap, msg.payload || {});\n  c.ps = psSnap;\n  const lvl = find(psSnap, 'level.predicted.atequipment.')\n          ?? find(psSnap, 'level.measured.atequipment.');\n  if (lvl != null) c.basinLevel = Number(lvl);\n  context.set('c', c);\n  return null;\n}\n\nconst pumpSnap = c.pump || {};\nObject.assign(pumpSnap, msg.payload || {});\nc.pump = pumpSnap;\ncontext.set('c', c);\n// Throttle: 1 Hz sensor updates are plenty for the demo; the\n// pump emits on every state change (5+/sec while cycling).\nconst _now = Date.now();\nconst _last = context.get('_lastEmit') || 0;\nif (_now - _last < 1000) return null;\ncontext.set('_lastEmit', _now);\n\nconst state = pumpSnap.state || 'idle';\n// 'isRunning' = the rotor is spinning (any non-idle, non-cooled state).\n// MGC retargets flow on every tick, so the pump spends most of its\n// time in 'accelerating' or 'decelerating', not 'operational'. Those\n// transient states are still moving water — flow/power sensors must\n// publish non-zero values during them or the measurement nodes go\n// quiet (formatMsg skips emits on no-diff).\nconst isRunning = ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(state);\n// 'pumpFlow' (not 'flow') — `flow` is the Node-RED flow-context object.\nconst pumpFlow  = Number(find(pumpSnap, 'flow.predicted.downstream.'));\nconst pumpPower = Number(find(pumpSnap, 'power.predicted.atequipment.'));\nconst basinLevel = c.basinLevel != null ? Number(c.basinLevel) : 0;\n\n// Publish this pump's contribution to the flow-context shared\n// header so the other physics feeders can compute total flow.\nflow.set('pump_flow_a', isRunning && Number.isFinite(pumpFlow) ? pumpFlow : 0);\nflow.set('pump_flow_a_state', state);\nconst flowA = Number(flow.get('pump_flow_a') || 0);\nconst flowB = Number(flow.get('pump_flow_b') || 0);\nconst flowC = Number(flow.get('pump_flow_c') || 0);\nconst totalFlow = flowA + flowB + flowC;\n\nconst HEAD_M = Math.max(0, basinLevel - 0.3);\n// Suction (basin) header pressure — same physical value for all\n// pumps; per-pump sensor noise added independently.\nconst p_upstream_clean = 98.1 * HEAD_M;\nlet p_upstream = Math.max(0, p_upstream_clean + gauss(2.5));\n\n// Discharge (header) pressure — driven by TOTAL flow leaving the\n// manifold, NOT this pump's individual flow. Static head 12 m\n// + quadratic system curve scaled so totalFlow=300 m³/h gives\n// ~full dynamic head.\nconst STATIC_MBAR = 12 * 98.1;\nconst DYN_MBAR_MAX = 12 * 98.1;\nconst TOTAL_FLOW_MAX = 300;\nconst ratio = Math.min(1, totalFlow / TOTAL_FLOW_MAX);\nconst p_downstream_header = STATIC_MBAR + ratio * ratio * DYN_MBAR_MAX;\n// Publish the clean header value to flow context so the MGC's\n// header-pressure measurement child can read it.\nflow.set('header_p_downstream', p_downstream_header);\nflow.set('header_p_upstream',   p_upstream_clean);\n// Per-pump downstream sensor: header value with local sensor noise.\nlet p_downstream = Math.max(0, p_downstream_header + gauss(8));\n\nconst flowMeas = (isRunning && Number.isFinite(pumpFlow))\n  ? Math.max(0, pumpFlow + gauss(Math.max(0.5, pumpFlow * 0.01)))\n  : 0;\n\nconst powerMeas = (isRunning && Number.isFinite(pumpPower))\n  ? Math.max(0, pumpPower + gauss(Math.max(0.05, pumpPower * 0.005)))\n  : 0;\n\nreturn [\n  { topic: 'measurement', payload: p_upstream },\n  { topic: 'measurement', payload: p_downstream },\n  { topic: 'measurement', payload: flowMeas   },\n  { topic: 'measurement', payload: powerMeas  },\n];\n",
     "outputs": 4,
     "noerr": 0,
     "initialize": "",
@@ -436,7 +436,7 @@
     "id": "c_pump_b",
     "type": "comment",
     "z": "tab_process",
-    "name": "\u2500\u2500 Pump B \u2500\u2500 (pump + 4 sensors + physics feeder)",
+    "name": "── Pump B ── (pump + 4 sensors + physics feeder)",
     "info": "Up/Dn pressure + flow + power sensors register as children of the pump. The physics_<pump> function takes the pump's own port-0 stream and PS port-0 (basin level) and drives all 4 sensors with physically-coupled values.",
     "x": 640,
     "y": 360,
@@ -471,7 +471,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "upstream",
-    "positionIcon": "\u2192",
+    "positionIcon": "→",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -530,7 +530,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "downstream",
-    "positionIcon": "\u2190",
+    "positionIcon": "←",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -589,7 +589,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "downstream",
-    "positionIcon": "\u2190",
+    "positionIcon": "←",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -648,7 +648,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "atEquipment",
-    "positionIcon": "\u22a5",
+    "positionIcon": "⊥",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -704,7 +704,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "atEquipment",
-    "positionIcon": "\u22a5",
+    "positionIcon": "⊥",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -742,7 +742,7 @@
     "type": "function",
     "z": "tab_process",
     "name": "format Pump B port 0",
-    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle dashboard fan-out to \u2264 2 Hz. The pump emits on\n// every state change (multiple per sec while cycling); the\n// dashboard doesn't need that resolution and the websocket\n// fan-out chokes the browser.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst flow  = find('flow.predicted.downstream.');\nconst power = find('power.predicted.atequipment.');\nconst ctrl  = find('ctrl.predicted.atequipment.');\nconst pUp   = find('pressure.measured.upstream.');\nconst pDn   = find('pressure.measured.downstream.');\nmsg.payload = {\n  state: c.state || 'idle',\n  mode:  c.mode  || 'auto',\n  ctrl:  ctrl  != null ? Number(ctrl ).toFixed(1) + '%' : 'n/a',\n  flow:  flow  != null ? Number(flow ).toFixed(1) + ' m\u00b3/h' : 'n/a',\n  power: power != null ? Number(power).toFixed(2) + ' kW' : 'n/a',\n  pUp:   pUp   != null ? Number(pUp  ).toFixed(0) + ' mbar' : 'n/a',\n  pDn:   pDn   != null ? Number(pDn  ).toFixed(0) + ' mbar' : 'n/a',\n  ctrlNum:  ctrl  != null ? Number(ctrl ) : null,\n  flowNum:  flow  != null ? Number(flow ) : null,\n  powerNum: power != null ? Number(power) : null,\n  pUpNum:   pUp   != null ? Number(pUp  ) : null,\n  pDnNum:   pDn   != null ? Number(pDn  ) : null,\n  // Pump is moving water any time it's between startup and shutdown, not\n  // just during steady operational. accelerate/decelerate/warmup count.\n  isRunning: ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(c.state),\n};\nreturn msg;",
+    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle dashboard fan-out to ≤ 2 Hz. The pump emits on\n// every state change (multiple per sec while cycling); the\n// dashboard doesn't need that resolution and the websocket\n// fan-out chokes the browser.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst flow  = find('flow.predicted.downstream.');\nconst power = find('power.predicted.atequipment.');\nconst ctrl  = find('ctrl.predicted.atequipment.');\nconst pUp   = find('pressure.measured.upstream.');\nconst pDn   = find('pressure.measured.downstream.');\nmsg.payload = {\n  state: c.state || 'idle',\n  mode:  c.mode  || 'auto',\n  ctrl:  ctrl  != null ? Number(ctrl ).toFixed(1) + '%' : 'n/a',\n  flow:  flow  != null ? Number(flow ).toFixed(1) + ' m³/h' : 'n/a',\n  power: power != null ? Number(power).toFixed(2) + ' kW' : 'n/a',\n  pUp:   pUp   != null ? Number(pUp  ).toFixed(0) + ' mbar' : 'n/a',\n  pDn:   pDn   != null ? Number(pDn  ).toFixed(0) + ' mbar' : 'n/a',\n  ctrlNum:  ctrl  != null ? Number(ctrl ) : null,\n  flowNum:  flow  != null ? Number(flow ) : null,\n  powerNum: power != null ? Number(power) : null,\n  pUpNum:   pUp   != null ? Number(pUp  ) : null,\n  pDnNum:   pDn   != null ? Number(pDn  ) : null,\n  // Pump is moving water any time it's between startup and shutdown, not\n  // just during steady operational. accelerate/decelerate/warmup count.\n  isRunning: ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(c.state),\n};\nreturn msg;",
     "outputs": 1,
     "noerr": 0,
     "initialize": "",
@@ -773,8 +773,8 @@
     "id": "physics_pump_b",
     "type": "function",
     "z": "tab_process",
-    "name": "physics Pump B \u2192 4 sensors",
+    "name": "physics Pump B → 4 sensors",
-    "func": "const c = context.get('c') || {};\nfunction find(o, prefix) {\n  for (const k in o) { if (k.indexOf(prefix) === 0) return o[k]; }\n  return null;\n}\nfunction gauss(sigma) {\n  let s = 0;\n  for (let i = 0; i < 12; i++) s += Math.random();\n  return (s - 6) * sigma;\n}\n\nif (msg.from === 'ps') {\n  const psSnap = c.ps || {};\n  Object.assign(psSnap, msg.payload || {});\n  c.ps = psSnap;\n  const lvl = find(psSnap, 'level.predicted.atequipment.')\n          ?? find(psSnap, 'level.measured.atequipment.');\n  if (lvl != null) c.basinLevel = Number(lvl);\n  context.set('c', c);\n  return null;\n}\n\nconst pumpSnap = c.pump || {};\nObject.assign(pumpSnap, msg.payload || {});\nc.pump = pumpSnap;\ncontext.set('c', c);\n// Throttle: 1 Hz sensor updates are plenty for the demo; the\n// pump emits on every state change (5+/sec while cycling).\nconst _now = Date.now();\nconst _last = context.get('_lastEmit') || 0;\nif (_now - _last < 1000) return null;\ncontext.set('_lastEmit', _now);\n\nconst state = pumpSnap.state || 'idle';\n// 'isRunning' = the rotor is spinning (any non-idle, non-cooled state).\n// MGC retargets flow on every tick, so the pump spends most of its\n// time in 'accelerating' or 'decelerating', not 'operational'. Those\n// transient states are still moving water \u2014 flow/power sensors must\n// publish non-zero values during them or the measurement nodes go\n// quiet (formatMsg skips emits on no-diff).\nconst isRunning = ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(state);\n// 'pumpFlow' (not 'flow') \u2014 `flow` is the Node-RED flow-context object.\nconst pumpFlow  = Number(find(pumpSnap, 'flow.predicted.downstream.'));\nconst pumpPower = Number(find(pumpSnap, 'power.predicted.atequipment.'));\nconst basinLevel = c.basinLevel != null ? Number(c.basinLevel) : 0;\n\n// Publish this pump's contribution to the flow-context shared\n// header so the other physics feeders can compute total flow.\nflow.set('pump_flow_b', isRunning && Number.isFinite(pumpFlow) ? pumpFlow : 0);\nflow.set('pump_flow_b_state', state);\nconst flowA = Number(flow.get('pump_flow_a') || 0);\nconst flowB = Number(flow.get('pump_flow_b') || 0);\nconst flowC = Number(flow.get('pump_flow_c') || 0);\nconst totalFlow = flowA + flowB + flowC;\n\nconst HEAD_M = Math.max(0, basinLevel - 0.3);\n// Suction (basin) header pressure \u2014 same physical value for all\n// pumps; per-pump sensor noise added independently.\nconst p_upstream_clean = 98.1 * HEAD_M;\nlet p_upstream = Math.max(0, p_upstream_clean + gauss(2.5));\n\n// Discharge (header) pressure \u2014 driven by TOTAL flow leaving the\n// manifold, NOT this pump's individual flow. Static head 12 m\n// + quadratic system curve scaled so totalFlow=300 m\u00b3/h gives\n// ~full dynamic head.\nconst STATIC_MBAR = 12 * 98.1;\nconst DYN_MBAR_MAX = 12 * 98.1;\nconst TOTAL_FLOW_MAX = 300;\nconst ratio = Math.min(1, totalFlow / TOTAL_FLOW_MAX);\nconst p_downstream_header = STATIC_MBAR + ratio * ratio * DYN_MBAR_MAX;\n// Publish the clean header value to flow context so the MGC's\n// header-pressure measurement child can read it.\nflow.set('header_p_downstream', p_downstream_header);\nflow.set('header_p_upstream',   p_upstream_clean);\n// Per-pump downstream sensor: header value with local sensor noise.\nlet p_downstream = Math.max(0, p_downstream_header + gauss(8));\n\nconst flowMeas = (isRunning && Number.isFinite(pumpFlow))\n  ? Math.max(0, pumpFlow + gauss(Math.max(0.5, pumpFlow * 0.01)))\n  : 0;\n\nconst powerMeas = (isRunning && Number.isFinite(pumpPower))\n  ? Math.max(0, pumpPower + gauss(Math.max(0.05, pumpPower * 0.005)))\n  : 0;\n\nreturn [\n  { topic: 'measurement', payload: p_upstream },\n  { topic: 'measurement', payload: p_downstream },\n  { topic: 'measurement', payload: flowMeas   },\n  { topic: 'measurement', payload: powerMeas  },\n];\n",
+    "func": "const c = context.get('c') || {};\nfunction find(o, prefix) {\n  for (const k in o) { if (k.indexOf(prefix) === 0) return o[k]; }\n  return null;\n}\nfunction gauss(sigma) {\n  let s = 0;\n  for (let i = 0; i < 12; i++) s += Math.random();\n  return (s - 6) * sigma;\n}\n\nif (msg.from === 'ps') {\n  const psSnap = c.ps || {};\n  Object.assign(psSnap, msg.payload || {});\n  c.ps = psSnap;\n  const lvl = find(psSnap, 'level.predicted.atequipment.')\n          ?? find(psSnap, 'level.measured.atequipment.');\n  if (lvl != null) c.basinLevel = Number(lvl);\n  context.set('c', c);\n  return null;\n}\n\nconst pumpSnap = c.pump || {};\nObject.assign(pumpSnap, msg.payload || {});\nc.pump = pumpSnap;\ncontext.set('c', c);\n// Throttle: 1 Hz sensor updates are plenty for the demo; the\n// pump emits on every state change (5+/sec while cycling).\nconst _now = Date.now();\nconst _last = context.get('_lastEmit') || 0;\nif (_now - _last < 1000) return null;\ncontext.set('_lastEmit', _now);\n\nconst state = pumpSnap.state || 'idle';\n// 'isRunning' = the rotor is spinning (any non-idle, non-cooled state).\n// MGC retargets flow on every tick, so the pump spends most of its\n// time in 'accelerating' or 'decelerating', not 'operational'. Those\n// transient states are still moving water — flow/power sensors must\n// publish non-zero values during them or the measurement nodes go\n// quiet (formatMsg skips emits on no-diff).\nconst isRunning = ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(state);\n// 'pumpFlow' (not 'flow') — `flow` is the Node-RED flow-context object.\nconst pumpFlow  = Number(find(pumpSnap, 'flow.predicted.downstream.'));\nconst pumpPower = Number(find(pumpSnap, 'power.predicted.atequipment.'));\nconst basinLevel = c.basinLevel != null ? Number(c.basinLevel) : 0;\n\n// Publish this pump's contribution to the flow-context shared\n// header so the other physics feeders can compute total flow.\nflow.set('pump_flow_b', isRunning && Number.isFinite(pumpFlow) ? pumpFlow : 0);\nflow.set('pump_flow_b_state', state);\nconst flowA = Number(flow.get('pump_flow_a') || 0);\nconst flowB = Number(flow.get('pump_flow_b') || 0);\nconst flowC = Number(flow.get('pump_flow_c') || 0);\nconst totalFlow = flowA + flowB + flowC;\n\nconst HEAD_M = Math.max(0, basinLevel - 0.3);\n// Suction (basin) header pressure — same physical value for all\n// pumps; per-pump sensor noise added independently.\nconst p_upstream_clean = 98.1 * HEAD_M;\nlet p_upstream = Math.max(0, p_upstream_clean + gauss(2.5));\n\n// Discharge (header) pressure — driven by TOTAL flow leaving the\n// manifold, NOT this pump's individual flow. Static head 12 m\n// + quadratic system curve scaled so totalFlow=300 m³/h gives\n// ~full dynamic head.\nconst STATIC_MBAR = 12 * 98.1;\nconst DYN_MBAR_MAX = 12 * 98.1;\nconst TOTAL_FLOW_MAX = 300;\nconst ratio = Math.min(1, totalFlow / TOTAL_FLOW_MAX);\nconst p_downstream_header = STATIC_MBAR + ratio * ratio * DYN_MBAR_MAX;\n// Publish the clean header value to flow context so the MGC's\n// header-pressure measurement child can read it.\nflow.set('header_p_downstream', p_downstream_header);\nflow.set('header_p_upstream',   p_upstream_clean);\n// Per-pump downstream sensor: header value with local sensor noise.\nlet p_downstream = Math.max(0, p_downstream_header + gauss(8));\n\nconst flowMeas = (isRunning && Number.isFinite(pumpFlow))\n  ? Math.max(0, pumpFlow + gauss(Math.max(0.5, pumpFlow * 0.01)))\n  : 0;\n\nconst powerMeas = (isRunning && Number.isFinite(pumpPower))\n  ? Math.max(0, pumpPower + gauss(Math.max(0.05, pumpPower * 0.005)))\n  : 0;\n\nreturn [\n  { topic: 'measurement', payload: p_upstream },\n  { topic: 'measurement', payload: p_downstream },\n  { topic: 'measurement', payload: flowMeas   },\n  { topic: 'measurement', payload: powerMeas  },\n];\n",
     "outputs": 4,
     "noerr": 0,
     "initialize": "",
@@ -852,7 +852,7 @@
     "id": "c_pump_c",
     "type": "comment",
     "z": "tab_process",
-    "name": "\u2500\u2500 Pump C \u2500\u2500 (pump + 4 sensors + physics feeder)",
+    "name": "── Pump C ── (pump + 4 sensors + physics feeder)",
     "info": "Up/Dn pressure + flow + power sensors register as children of the pump. The physics_<pump> function takes the pump's own port-0 stream and PS port-0 (basin level) and drives all 4 sensors with physically-coupled values.",
     "x": 640,
     "y": 640,
@@ -887,7 +887,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "upstream",
-    "positionIcon": "\u2192",
+    "positionIcon": "→",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -946,7 +946,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "downstream",
-    "positionIcon": "\u2190",
+    "positionIcon": "←",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -1005,7 +1005,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "downstream",
-    "positionIcon": "\u2190",
+    "positionIcon": "←",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -1064,7 +1064,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "atEquipment",
-    "positionIcon": "\u22a5",
+    "positionIcon": "⊥",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -1120,7 +1120,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "atEquipment",
-    "positionIcon": "\u22a5",
+    "positionIcon": "⊥",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -1158,7 +1158,7 @@
     "type": "function",
     "z": "tab_process",
     "name": "format Pump C port 0",
-    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle dashboard fan-out to \u2264 2 Hz. The pump emits on\n// every state change (multiple per sec while cycling); the\n// dashboard doesn't need that resolution and the websocket\n// fan-out chokes the browser.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst flow  = find('flow.predicted.downstream.');\nconst power = find('power.predicted.atequipment.');\nconst ctrl  = find('ctrl.predicted.atequipment.');\nconst pUp   = find('pressure.measured.upstream.');\nconst pDn   = find('pressure.measured.downstream.');\nmsg.payload = {\n  state: c.state || 'idle',\n  mode:  c.mode  || 'auto',\n  ctrl:  ctrl  != null ? Number(ctrl ).toFixed(1) + '%' : 'n/a',\n  flow:  flow  != null ? Number(flow ).toFixed(1) + ' m\u00b3/h' : 'n/a',\n  power: power != null ? Number(power).toFixed(2) + ' kW' : 'n/a',\n  pUp:   pUp   != null ? Number(pUp  ).toFixed(0) + ' mbar' : 'n/a',\n  pDn:   pDn   != null ? Number(pDn  ).toFixed(0) + ' mbar' : 'n/a',\n  ctrlNum:  ctrl  != null ? Number(ctrl ) : null,\n  flowNum:  flow  != null ? Number(flow ) : null,\n  powerNum: power != null ? Number(power) : null,\n  pUpNum:   pUp   != null ? Number(pUp  ) : null,\n  pDnNum:   pDn   != null ? Number(pDn  ) : null,\n  // Pump is moving water any time it's between startup and shutdown, not\n  // just during steady operational. accelerate/decelerate/warmup count.\n  isRunning: ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(c.state),\n};\nreturn msg;",
+    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle dashboard fan-out to ≤ 2 Hz. The pump emits on\n// every state change (multiple per sec while cycling); the\n// dashboard doesn't need that resolution and the websocket\n// fan-out chokes the browser.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst flow  = find('flow.predicted.downstream.');\nconst power = find('power.predicted.atequipment.');\nconst ctrl  = find('ctrl.predicted.atequipment.');\nconst pUp   = find('pressure.measured.upstream.');\nconst pDn   = find('pressure.measured.downstream.');\nmsg.payload = {\n  state: c.state || 'idle',\n  mode:  c.mode  || 'auto',\n  ctrl:  ctrl  != null ? Number(ctrl ).toFixed(1) + '%' : 'n/a',\n  flow:  flow  != null ? Number(flow ).toFixed(1) + ' m³/h' : 'n/a',\n  power: power != null ? Number(power).toFixed(2) + ' kW' : 'n/a',\n  pUp:   pUp   != null ? Number(pUp  ).toFixed(0) + ' mbar' : 'n/a',\n  pDn:   pDn   != null ? Number(pDn  ).toFixed(0) + ' mbar' : 'n/a',\n  ctrlNum:  ctrl  != null ? Number(ctrl ) : null,\n  flowNum:  flow  != null ? Number(flow ) : null,\n  powerNum: power != null ? Number(power) : null,\n  pUpNum:   pUp   != null ? Number(pUp  ) : null,\n  pDnNum:   pDn   != null ? Number(pDn  ) : null,\n  // Pump is moving water any time it's between startup and shutdown, not\n  // just during steady operational. accelerate/decelerate/warmup count.\n  isRunning: ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(c.state),\n};\nreturn msg;",
     "outputs": 1,
     "noerr": 0,
     "initialize": "",
@@ -1189,8 +1189,8 @@
     "id": "physics_pump_c",
     "type": "function",
     "z": "tab_process",
-    "name": "physics Pump C \u2192 4 sensors",
+    "name": "physics Pump C → 4 sensors",
-    "func": "const c = context.get('c') || {};\nfunction find(o, prefix) {\n  for (const k in o) { if (k.indexOf(prefix) === 0) return o[k]; }\n  return null;\n}\nfunction gauss(sigma) {\n  let s = 0;\n  for (let i = 0; i < 12; i++) s += Math.random();\n  return (s - 6) * sigma;\n}\n\nif (msg.from === 'ps') {\n  const psSnap = c.ps || {};\n  Object.assign(psSnap, msg.payload || {});\n  c.ps = psSnap;\n  const lvl = find(psSnap, 'level.predicted.atequipment.')\n          ?? find(psSnap, 'level.measured.atequipment.');\n  if (lvl != null) c.basinLevel = Number(lvl);\n  context.set('c', c);\n  return null;\n}\n\nconst pumpSnap = c.pump || {};\nObject.assign(pumpSnap, msg.payload || {});\nc.pump = pumpSnap;\ncontext.set('c', c);\n// Throttle: 1 Hz sensor updates are plenty for the demo; the\n// pump emits on every state change (5+/sec while cycling).\nconst _now = Date.now();\nconst _last = context.get('_lastEmit') || 0;\nif (_now - _last < 1000) return null;\ncontext.set('_lastEmit', _now);\n\nconst state = pumpSnap.state || 'idle';\n// 'isRunning' = the rotor is spinning (any non-idle, non-cooled state).\n// MGC retargets flow on every tick, so the pump spends most of its\n// time in 'accelerating' or 'decelerating', not 'operational'. Those\n// transient states are still moving water \u2014 flow/power sensors must\n// publish non-zero values during them or the measurement nodes go\n// quiet (formatMsg skips emits on no-diff).\nconst isRunning = ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(state);\n// 'pumpFlow' (not 'flow') \u2014 `flow` is the Node-RED flow-context object.\nconst pumpFlow  = Number(find(pumpSnap, 'flow.predicted.downstream.'));\nconst pumpPower = Number(find(pumpSnap, 'power.predicted.atequipment.'));\nconst basinLevel = c.basinLevel != null ? Number(c.basinLevel) : 0;\n\n// Publish this pump's contribution to the flow-context shared\n// header so the other physics feeders can compute total flow.\nflow.set('pump_flow_c', isRunning && Number.isFinite(pumpFlow) ? pumpFlow : 0);\nflow.set('pump_flow_c_state', state);\nconst flowA = Number(flow.get('pump_flow_a') || 0);\nconst flowB = Number(flow.get('pump_flow_b') || 0);\nconst flowC = Number(flow.get('pump_flow_c') || 0);\nconst totalFlow = flowA + flowB + flowC;\n\nconst HEAD_M = Math.max(0, basinLevel - 0.3);\n// Suction (basin) header pressure \u2014 same physical value for all\n// pumps; per-pump sensor noise added independently.\nconst p_upstream_clean = 98.1 * HEAD_M;\nlet p_upstream = Math.max(0, p_upstream_clean + gauss(2.5));\n\n// Discharge (header) pressure \u2014 driven by TOTAL flow leaving the\n// manifold, NOT this pump's individual flow. Static head 12 m\n// + quadratic system curve scaled so totalFlow=300 m\u00b3/h gives\n// ~full dynamic head.\nconst STATIC_MBAR = 12 * 98.1;\nconst DYN_MBAR_MAX = 12 * 98.1;\nconst TOTAL_FLOW_MAX = 300;\nconst ratio = Math.min(1, totalFlow / TOTAL_FLOW_MAX);\nconst p_downstream_header = STATIC_MBAR + ratio * ratio * DYN_MBAR_MAX;\n// Publish the clean header value to flow context so the MGC's\n// header-pressure measurement child can read it.\nflow.set('header_p_downstream', p_downstream_header);\nflow.set('header_p_upstream',   p_upstream_clean);\n// Per-pump downstream sensor: header value with local sensor noise.\nlet p_downstream = Math.max(0, p_downstream_header + gauss(8));\n\nconst flowMeas = (isRunning && Number.isFinite(pumpFlow))\n  ? Math.max(0, pumpFlow + gauss(Math.max(0.5, pumpFlow * 0.01)))\n  : 0;\n\nconst powerMeas = (isRunning && Number.isFinite(pumpPower))\n  ? Math.max(0, pumpPower + gauss(Math.max(0.05, pumpPower * 0.005)))\n  : 0;\n\nreturn [\n  { topic: 'measurement', payload: p_upstream },\n  { topic: 'measurement', payload: p_downstream },\n  { topic: 'measurement', payload: flowMeas   },\n  { topic: 'measurement', payload: powerMeas  },\n];\n",
+    "func": "const c = context.get('c') || {};\nfunction find(o, prefix) {\n  for (const k in o) { if (k.indexOf(prefix) === 0) return o[k]; }\n  return null;\n}\nfunction gauss(sigma) {\n  let s = 0;\n  for (let i = 0; i < 12; i++) s += Math.random();\n  return (s - 6) * sigma;\n}\n\nif (msg.from === 'ps') {\n  const psSnap = c.ps || {};\n  Object.assign(psSnap, msg.payload || {});\n  c.ps = psSnap;\n  const lvl = find(psSnap, 'level.predicted.atequipment.')\n          ?? find(psSnap, 'level.measured.atequipment.');\n  if (lvl != null) c.basinLevel = Number(lvl);\n  context.set('c', c);\n  return null;\n}\n\nconst pumpSnap = c.pump || {};\nObject.assign(pumpSnap, msg.payload || {});\nc.pump = pumpSnap;\ncontext.set('c', c);\n// Throttle: 1 Hz sensor updates are plenty for the demo; the\n// pump emits on every state change (5+/sec while cycling).\nconst _now = Date.now();\nconst _last = context.get('_lastEmit') || 0;\nif (_now - _last < 1000) return null;\ncontext.set('_lastEmit', _now);\n\nconst state = pumpSnap.state || 'idle';\n// 'isRunning' = the rotor is spinning (any non-idle, non-cooled state).\n// MGC retargets flow on every tick, so the pump spends most of its\n// time in 'accelerating' or 'decelerating', not 'operational'. Those\n// transient states are still moving water — flow/power sensors must\n// publish non-zero values during them or the measurement nodes go\n// quiet (formatMsg skips emits on no-diff).\nconst isRunning = ['operational','starting','warmingup','accelerating','decelerating','stopping'].includes(state);\n// 'pumpFlow' (not 'flow') — `flow` is the Node-RED flow-context object.\nconst pumpFlow  = Number(find(pumpSnap, 'flow.predicted.downstream.'));\nconst pumpPower = Number(find(pumpSnap, 'power.predicted.atequipment.'));\nconst basinLevel = c.basinLevel != null ? Number(c.basinLevel) : 0;\n\n// Publish this pump's contribution to the flow-context shared\n// header so the other physics feeders can compute total flow.\nflow.set('pump_flow_c', isRunning && Number.isFinite(pumpFlow) ? pumpFlow : 0);\nflow.set('pump_flow_c_state', state);\nconst flowA = Number(flow.get('pump_flow_a') || 0);\nconst flowB = Number(flow.get('pump_flow_b') || 0);\nconst flowC = Number(flow.get('pump_flow_c') || 0);\nconst totalFlow = flowA + flowB + flowC;\n\nconst HEAD_M = Math.max(0, basinLevel - 0.3);\n// Suction (basin) header pressure — same physical value for all\n// pumps; per-pump sensor noise added independently.\nconst p_upstream_clean = 98.1 * HEAD_M;\nlet p_upstream = Math.max(0, p_upstream_clean + gauss(2.5));\n\n// Discharge (header) pressure — driven by TOTAL flow leaving the\n// manifold, NOT this pump's individual flow. Static head 12 m\n// + quadratic system curve scaled so totalFlow=300 m³/h gives\n// ~full dynamic head.\nconst STATIC_MBAR = 12 * 98.1;\nconst DYN_MBAR_MAX = 12 * 98.1;\nconst TOTAL_FLOW_MAX = 300;\nconst ratio = Math.min(1, totalFlow / TOTAL_FLOW_MAX);\nconst p_downstream_header = STATIC_MBAR + ratio * ratio * DYN_MBAR_MAX;\n// Publish the clean header value to flow context so the MGC's\n// header-pressure measurement child can read it.\nflow.set('header_p_downstream', p_downstream_header);\nflow.set('header_p_upstream',   p_upstream_clean);\n// Per-pump downstream sensor: header value with local sensor noise.\nlet p_downstream = Math.max(0, p_downstream_header + gauss(8));\n\nconst flowMeas = (isRunning && Number.isFinite(pumpFlow))\n  ? Math.max(0, pumpFlow + gauss(Math.max(0.5, pumpFlow * 0.01)))\n  : 0;\n\nconst powerMeas = (isRunning && Number.isFinite(pumpPower))\n  ? Math.max(0, pumpPower + gauss(Math.max(0.05, pumpPower * 0.005)))\n  : 0;\n\nreturn [\n  { topic: 'measurement', payload: p_upstream },\n  { topic: 'measurement', payload: p_downstream },\n  { topic: 'measurement', payload: flowMeas   },\n  { topic: 'measurement', payload: powerMeas  },\n];\n",
     "outputs": 4,
     "noerr": 0,
     "initialize": "",
@@ -1268,7 +1268,7 @@
     "id": "c_mgc",
     "type": "comment",
     "z": "tab_process",
-    "name": "\u2500\u2500 MGC \u2500\u2500 (orchestrates the 3 pumps via optimalcontrol)",
+    "name": "── MGC ── (orchestrates the 3 pumps via optimalcontrol)",
     "info": "",
     "x": 640,
     "y": 920,
@@ -1278,7 +1278,7 @@
     "id": "mgc_pumps",
     "type": "machineGroupControl",
     "z": "tab_process",
-    "name": "MGC \u2014 Pump Group",
+    "name": "MGC — Pump Group",
     "uuid": "mgc-pump-group",
     "category": "controller",
     "assetType": "machinegroupcontrol",
@@ -1289,7 +1289,7 @@
     "logLevel": "debug",
     "tickIntervalMs": 2000,
     "positionVsParent": "atEquipment",
-    "positionIcon": "\u22a5",
+    "positionIcon": "⊥",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -1328,7 +1328,7 @@
     "type": "function",
     "z": "tab_process",
     "name": "format MGC port 0",
-    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle: MGC fires on every distribution change.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst totalFlow  = find('flow.predicted.atequipment.') ?? find('downstream_predicted_flow');\nconst totalPower = find('power.predicted.atequipment.') ?? find('atEquipment_predicted_power');\nconst eff = find('efficiency.predicted.atequipment.');\nmsg.payload = {\n  totalFlow:  totalFlow  != null ? Number(totalFlow ).toFixed(1) + ' m\u00b3/h' : 'n/a',\n  totalPower: totalPower != null ? Number(totalPower).toFixed(2) + ' kW' : 'n/a',\n  efficiency: eff != null ? Number(eff).toFixed(3) : 'n/a',\n  totalFlowNum:  totalFlow  != null ? Number(totalFlow ) : null,\n  totalPowerNum: totalPower != null ? Number(totalPower) : null,\n  efficiencyNum: eff != null ? Number(eff) : null,\n};\nreturn msg;",
+    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle: MGC fires on every distribution change.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst totalFlow  = find('flow.predicted.atequipment.') ?? find('downstream_predicted_flow');\nconst totalPower = find('power.predicted.atequipment.') ?? find('atEquipment_predicted_power');\nconst eff = find('efficiency.predicted.atequipment.');\nmsg.payload = {\n  totalFlow:  totalFlow  != null ? Number(totalFlow ).toFixed(1) + ' m³/h' : 'n/a',\n  totalPower: totalPower != null ? Number(totalPower).toFixed(2) + ' kW' : 'n/a',\n  efficiency: eff != null ? Number(eff).toFixed(3) : 'n/a',\n  totalFlowNum:  totalFlow  != null ? Number(totalFlow ) : null,\n  totalPowerNum: totalPower != null ? Number(totalPower) : null,\n  efficiencyNum: eff != null ? Number(eff) : null,\n};\nreturn msg;",
     "outputs": 1,
     "noerr": 0,
     "initialize": "",
@@ -1359,7 +1359,7 @@
     "id": "c_ps",
     "type": "comment",
     "z": "tab_process",
-    "name": "\u2500\u2500 Pumping Station \u2500\u2500 (basin model, levelbased control)",
+    "name": "── Pumping Station ── (basin model, levelbased control)",
     "info": "",
     "x": 640,
     "y": 1200,
@@ -1401,7 +1401,7 @@
     "id": "qd_to_ps_wrap",
     "type": "function",
     "z": "tab_process",
-    "name": "wrap slider \u2192 PS Qd",
+    "name": "wrap slider → PS Qd",
     "func": "msg.topic = 'Qd';\nreturn msg;",
     "outputs": 1,
     "noerr": 0,
@@ -1447,7 +1447,7 @@
     "logLevel": "warn",
     "tickIntervalMs": 2000,
     "positionVsParent": "atEquipment",
-    "positionIcon": "\u22a5",
+    "positionIcon": "⊥",
     "hasDistance": false,
     "distance": 0,
     "distanceUnit": "m",
@@ -1510,7 +1510,7 @@
     "id": "ps_to_physics",
     "type": "function",
     "z": "tab_process",
-    "name": "ps \u2192 fan basin level to 3 physics feeders",
+    "name": "ps → fan basin level to 3 physics feeders",
     "func": "const out = { from: 'ps', payload: msg.payload };\nreturn [out, out, out];",
     "outputs": 3,
     "noerr": 0,
@@ -1536,7 +1536,7 @@
     "type": "function",
     "z": "tab_process",
     "name": "format PS port 0",
-    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle: PS emits frequently in levelbased mode.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst MAX_VOL = 50.0;\nconst lvl  = find('level.predicted.');\nconst vol  = find('volume.predicted.');\nconst qIn  = find('flow.predicted.in.');\nconst qOut = find('flow.predicted.out.');\nconst netFlowRate = find('netFlowRate.predicted.');\nconst fillPct = vol != null\n  ? Math.min(100, Math.max(0, Math.round(Number(vol) / MAX_VOL * 100)))\n  : null;\nconst netM3h  = netFlowRate != null ? Number(netFlowRate) * 3600 : null;\nconst seconds = (c.timeleft != null && Number.isFinite(Number(c.timeleft)))\n  ? Number(c.timeleft) : null;\nconst timeStr = seconds != null\n  ? (seconds > 60 ? Math.round(seconds/60) + ' min'\n                  : Math.round(seconds) + ' s')\n  : 'n/a';\nmsg.payload = {\n  direction: c.direction || 'steady',\n  level:    lvl != null ? Number(lvl).toFixed(2) + ' m'  : 'n/a',\n  volume:   vol != null ? Number(vol).toFixed(1) + ' m\u00b3' : 'n/a',\n  fillPct:  fillPct != null ? fillPct + '%' : 'n/a',\n  netFlow:  netM3h != null ? netM3h.toFixed(0) + ' m\u00b3/h' : 'n/a',\n  timeLeft: timeStr,\n  qIn:      qIn  != null ? (Number(qIn ) * 3600).toFixed(0) + ' m\u00b3/h' : 'n/a',\n  qOut:     qOut != null ? (Number(qOut) * 3600).toFixed(0) + ' m\u00b3/h' : 'n/a',\n  levelNum:   lvl  != null ? Number(lvl) : null,\n  volumeNum:  vol  != null ? Number(vol) : null,\n  fillPctNum: fillPct,\n  netFlowNum: netM3h,\n  percControl: c.percControl != null ? Number(c.percControl) : null,\n  qInNum:  qIn  != null ? Number(qIn ) * 3600 : null,\n  qOutNum: qOut != null ? Number(qOut) * 3600 : null,\n  safetyState: c.safetyState || 'normal',\n};\nreturn msg;",
+    "func": "const p = msg.payload || {};\nconst c = context.get('c') || {};\nObject.assign(c, p);\ncontext.set('c', c);\n// Throttle: PS emits frequently in levelbased mode.\nconst now = Date.now();\nconst last = context.get('_lastEmit') || 0;\nif (now - last < 1000) return null;\ncontext.set('_lastEmit', now);\nfunction find(prefix) {\n  for (const k in c) { if (k.indexOf(prefix) === 0) return c[k]; }\n  return null;\n}\nconst MAX_VOL = 50.0;\nconst lvl  = find('level.predicted.');\nconst vol  = find('volume.predicted.');\nconst qIn  = find('flow.predicted.in.');\nconst qOut = find('flow.predicted.out.');\nconst netFlowRate = find('netFlowRate.predicted.');\nconst fillPct = vol != null\n  ? Math.min(100, Math.max(0, Math.round(Number(vol) / MAX_VOL * 100)))\n  : null;\nconst netM3h  = netFlowRate != null ? Number(netFlowRate) * 3600 : null;\nconst seconds = (c.timeleft != null && Number.isFinite(Number(c.timeleft)))\n  ? Number(c.timeleft) : null;\nconst timeStr = seconds != null\n  ? (seconds > 60 ? Math.round(seconds/60) + ' min'\n                  : Math.round(seconds) + ' s')\n  : 'n/a';\nmsg.payload = {\n  direction: c.direction || 'steady',\n  level:    lvl != null ? Number(lvl).toFixed(2) + ' m'  : 'n/a',\n  volume:   vol != null ? Number(vol).toFixed(1) + ' m³' : 'n/a',\n  fillPct:  fillPct != null ? fillPct + '%' : 'n/a',\n  netFlow:  netM3h != null ? netM3h.toFixed(0) + ' m³/h' : 'n/a',\n  timeLeft: timeStr,\n  qIn:      qIn  != null ? (Number(qIn ) * 3600).toFixed(0) + ' m³/h' : 'n/a',\n  qOut:     qOut != null ? (Number(qOut) * 3600).toFixed(0) + ' m³/h' : 'n/a',\n  levelNum:   lvl  != null ? Number(lvl) : null,\n  volumeNum:  vol  != null ? Number(vol) : null,\n  fillPctNum: fillPct,\n  netFlowNum: netM3h,\n  percControl: c.percControl != null ? Number(c.percControl) : null,\n  qInNum:  qIn  != null ? Number(qIn ) * 3600 : null,\n  qOutNum: qOut != null ? Number(qOut) * 3600 : null,\n  safetyState: c.safetyState || 'normal',\n};\nreturn msg;",
     "outputs": 1,
     "noerr": 0,
     "initialize": "",
@@ -1567,7 +1567,7 @@
     "id": "c_mode_bcast",
     "type": "comment",
     "z": "tab_process",
-    "name": "\u2500\u2500 Mode broadcast \u2500\u2500",
+    "name": "── Mode broadcast ──",
     "info": "",
     "x": 640,
     "y": 1420,
@@ -1593,7 +1593,7 @@
     "id": "fanout_mode",
     "type": "function",
     "z": "tab_process",
-    "name": "fan setMode \u2192 3 pumps",
+    "name": "fan setMode → 3 pumps",
     "func": "msg.topic = 'setMode';\nreturn [msg, msg, msg];",
     "outputs": 3,
     "noerr": 0,
@@ -1618,7 +1618,7 @@
     "id": "c_station_cmds",
     "type": "comment",
     "z": "tab_process",
-    "name": "\u2500\u2500 Station-wide commands \u2500\u2500",
+    "name": "── Station-wide commands ──",
     "info": "",
     "x": 640,
     "y": 1620,
@@ -1644,7 +1644,7 @@
     "id": "fan_station_start",
     "type": "function",
     "z": "tab_process",
-    "name": "fan startup \u2192 3 pumps",
+    "name": "fan startup → 3 pumps",
     "func": "return [msg, msg, msg];",
     "outputs": 3,
     "noerr": 0,
@@ -1685,7 +1685,7 @@
     "id": "fan_station_stop",
     "type": "function",
     "z": "tab_process",
-    "name": "fan shutdown \u2192 3 pumps",
+    "name": "fan shutdown → 3 pumps",
     "func": "return [msg, msg, msg];",
     "outputs": 3,
     "noerr": 0,
@@ -1726,7 +1726,7 @@
     "id": "fan_station_estop",
     "type": "function",
     "z": "tab_process",
-    "name": "fan emergency stop \u2192 3 pumps",
+    "name": "fan emergency stop → 3 pumps",
     "func": "return [msg, msg, msg];",
     "outputs": 3,
     "noerr": 0,
@@ -1751,7 +1751,7 @@
     "id": "c_setup_at_mgc",
     "type": "comment",
     "z": "tab_process",
-    "name": "\u2500\u2500 Setup feeders \u2500\u2500",
+    "name": "── Setup feeders ──",
     "info": "",
     "x": 640,
     "y": 1900,
@@ -1792,9 +1792,9 @@
   {
     "id": "tab_ui",
     "type": "tab",
-    "label": "\ud83d\udcca Dashboard UI",
+    "label": "📊 Dashboard UI",
     "disabled": false,
-    "info": "All FlowFuse ui-* widgets. Two pages:\n  /dashboard/realtime \u2014 gauges + per-pump status (no time history)\n  /dashboard/trends   \u2014 line charts, 1 hour rolling window\n\nAll inputs leave via link-out; all process state arrives via link-in."
+    "info": "All FlowFuse ui-* widgets. Two pages:\n  /dashboard/realtime — gauges + per-pump status (no time history)\n  /dashboard/trends   — line charts, 1 hour rolling window\n\nAll inputs leave via link-out; all process state arrives via link-in."
   },
   {
     "id": "ui_base",
@@ -1853,7 +1853,7 @@
   {
     "id": "ui_page_trends",
     "type": "ui-page",
-    "name": "Trends \u2014 1 hour",
+    "name": "Trends — 1 hour",
     "ui": "ui_base",
     "path": "/trends",
     "icon": "show_chart",
@@ -1867,7 +1867,8 @@
       }
     ],
     "order": 2,
-    "className": ""
+    "className": "",
+    "d": true
   },
   {
     "id": "ui_grp_inflow",
@@ -1984,7 +1985,7 @@
   {
     "id": "ui_grp_tr_demand",
     "type": "ui-group",
-    "name": "Process demand \u2014 PS percControl (1h)",
+    "name": "Process demand — PS percControl (1h)",
     "page": "ui_page_trends",
     "width": "12",
     "height": "1",
@@ -1998,7 +1999,7 @@
   {
     "id": "ui_grp_tr_dq",
     "type": "ui-group",
-    "name": "\u0394Q = inflow \u2212 outflow (m\u00b3/h, +fill / \u2212drain)",
+    "name": "ΔQ = inflow − outflow (m³/h, +fill / −drain)",
     "page": "ui_page_trends",
     "width": "12",
     "height": "1",
@@ -2069,7 +2070,7 @@
     "id": "c_ui_title",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\ud83d\udcca DASHBOARD UI \u2014 only ui-* widgets here",
+    "name": "📊 DASHBOARD UI — only ui-* widgets here",
     "info": "",
     "x": 640,
     "y": 20,
@@ -2079,7 +2080,7 @@
     "id": "c_ui_inflow",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\u2500\u2500 Operator inflow input \u2500\u2500",
+    "name": "── Operator inflow input ──",
     "info": "",
     "x": 640,
     "y": 80,
@@ -2091,7 +2092,7 @@
     "z": "tab_ui",
     "group": "ui_grp_inflow",
     "name": "Inflow baseline",
-    "label": "Inflow baseline (m\u00b3/h) \u2014 scenarios modulate around this value",
+    "label": "Inflow baseline (m³/h) — scenarios modulate around this value",
     "tooltip": "",
     "order": 1,
     "width": "0",
@@ -2357,7 +2358,7 @@
     "type": "function",
     "z": "tab_ui",
     "name": "dispatch inflow",
-    "func": "const p = msg.payload || {};\nconst ts = Date.now();\nreturn [\n  { payload: (p.scenario || 'constant').toUpperCase() },\n  { payload: p.q_h != null ? Number(p.q_h).toFixed(1) + ' m\u00b3/h' : 'n/a' },\n  p.q_h != null ? { topic: 'Inflow', payload: Number(p.q_h), timestamp: ts } : null,\n];",
+    "func": "const p = msg.payload || {};\nconst ts = Date.now();\nreturn [\n  { payload: (p.scenario || 'constant').toUpperCase() },\n  { payload: p.q_h != null ? Number(p.q_h).toFixed(1) + ' m³/h' : 'n/a' },\n  p.q_h != null ? { topic: 'Inflow', payload: Number(p.q_h), timestamp: ts } : null,\n];",
     "outputs": 3,
     "noerr": 0,
     "initialize": "",
@@ -2421,7 +2422,7 @@
     "id": "c_ui_station",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\u2500\u2500 Mode + Station-wide buttons \u2500\u2500",
+    "name": "── Mode + Station-wide buttons ──",
     "info": "",
     "x": 640,
     "y": 380,
@@ -2433,7 +2434,7 @@
     "z": "tab_ui",
     "group": "ui_grp_station",
     "name": "Station mode",
-    "label": "Station mode (Auto = level-based \u00b7 Manual = slider Qd)",
+    "label": "Station mode (Auto = level-based · Manual = slider Qd)",
     "tooltip": "",
     "order": 1,
     "width": "0",
@@ -2480,7 +2481,7 @@
     "z": "tab_ui",
     "group": "ui_grp_station",
     "name": "Manual Qd",
-    "label": "Manual Qd (m\u00b3/h, manual mode only)",
+    "label": "Manual Qd (m³/h, manual mode only)",
     "tooltip": "",
     "order": 1,
     "width": "0",
@@ -2707,7 +2708,7 @@
     "id": "c_ui_basin",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\u2500\u2500 Basin realtime (gauges + text) \u2500\u2500",
+    "name": "── Basin realtime (gauges + text) ──",
     "info": "",
     "x": 640,
     "y": 700,
@@ -2734,7 +2735,7 @@
     "type": "function",
     "z": "tab_ui",
     "name": "dispatch PS",
-    "func": "const p = msg.payload || {};\nconst ts = Date.now();\n// \u0394Q = inflow \u2212 outflow in m\u00b3/h (positive = filling).\nconst dQ = (p.qInNum != null && p.qOutNum != null)\n  ? p.qInNum - p.qOutNum : null;\n// Demand text formatting.\nconst demandStr = p.percControl != null\n  ? Number(p.percControl).toFixed(0) + '%' : 'n/a';\nreturn [\n  { payload: String(p.direction   || 'steady') },\n  { payload: String(p.level       || 'n/a')    },\n  { payload: String(p.volume      || 'n/a')    },\n  { payload: String(p.fillPct     || 'n/a')    },\n  { payload: String(p.netFlow     || 'n/a')    },\n  { payload: String(p.timeLeft    || 'n/a')    },\n  { payload: String(p.qIn         || 'n/a')    },\n  { payload: String(p.qOut        || 'n/a')    },\n  { payload: String(p.safetyState || 'normal') },\n  { payload: demandStr },\n  p.levelNum    != null ? { payload: p.levelNum    } : null,\n  p.fillPctNum  != null ? { payload: p.fillPctNum  } : null,\n  p.percControl != null ? { payload: p.percControl } : null,\n  p.levelNum    != null ? { topic: 'Basin level', payload: p.levelNum,    timestamp: ts } : null,\n  p.fillPctNum  != null ? { topic: 'Fill %',      payload: p.fillPctNum,  timestamp: ts } : null,\n  p.qOutNum     != null ? { topic: 'Outflow',     payload: p.qOutNum,     timestamp: ts } : null,\n  p.percControl != null ? { topic: 'PS demand',   payload: p.percControl, timestamp: ts } : null,\n  dQ            != null ? { topic: '\u0394Q',          payload: dQ,            timestamp: ts } : null,\n];",
+    "func": "const p = msg.payload || {};\nconst ts = Date.now();\n// ΔQ = inflow − outflow in m³/h (positive = filling).\nconst dQ = (p.qInNum != null && p.qOutNum != null)\n  ? p.qInNum - p.qOutNum : null;\n// Demand text formatting.\nconst demandStr = p.percControl != null\n  ? Number(p.percControl).toFixed(0) + '%' : 'n/a';\nreturn [\n  { payload: String(p.direction   || 'steady') },\n  { payload: String(p.level       || 'n/a')    },\n  { payload: String(p.volume      || 'n/a')    },\n  { payload: String(p.fillPct     || 'n/a')    },\n  { payload: String(p.netFlow     || 'n/a')    },\n  { payload: String(p.timeLeft    || 'n/a')    },\n  { payload: String(p.qIn         || 'n/a')    },\n  { payload: String(p.qOut        || 'n/a')    },\n  { payload: String(p.safetyState || 'normal') },\n  { payload: demandStr },\n  p.levelNum    != null ? { payload: p.levelNum    } : null,\n  p.fillPctNum  != null ? { payload: p.fillPctNum  } : null,\n  p.percControl != null ? { payload: p.percControl } : null,\n  p.levelNum    != null ? { topic: 'Basin level', payload: p.levelNum,    timestamp: ts } : null,\n  p.fillPctNum  != null ? { topic: 'Fill %',      payload: p.fillPctNum,  timestamp: ts } : null,\n  p.qOutNum     != null ? { topic: 'Outflow',     payload: p.qOutNum,     timestamp: ts } : null,\n  p.percControl != null ? { topic: 'PS demand',   payload: p.percControl, timestamp: ts } : null,\n  dQ            != null ? { topic: 'ΔQ',          payload: dQ,            timestamp: ts } : null,\n];",
     "outputs": 18,
     "noerr": 0,
     "initialize": "",
@@ -3144,7 +3145,7 @@
     "id": "c_ui_mgc",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\u2500\u2500 MGC realtime \u2500\u2500",
+    "name": "── MGC realtime ──",
     "info": "",
     "x": 640,
     "y": 1080,
@@ -3266,9 +3267,9 @@
     "gtype": "gauge-34",
     "gstyle": "Rounded",
     "title": "Total flow",
-    "units": "m\u00b3/h",
+    "units": "m³/h",
     "prefix": "",
-    "suffix": " m\u00b3/h",
+    "suffix": " m³/h",
     "min": 0,
     "max": 600,
     "segments": [
@@ -3347,7 +3348,7 @@
     "id": "c_ui_pump_a",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\u2500\u2500 Pump A \u2500\u2500",
+    "name": "── Pump A ──",
     "info": "",
     "x": 640,
     "y": 1340,
@@ -3720,7 +3721,7 @@
     "id": "c_ui_pump_b",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\u2500\u2500 Pump B \u2500\u2500",
+    "name": "── Pump B ──",
     "info": "",
     "x": 640,
     "y": 1820,
@@ -4093,7 +4094,7 @@
     "id": "c_ui_pump_c",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\u2500\u2500 Pump C \u2500\u2500",
+    "name": "── Pump C ──",
     "info": "",
     "x": 640,
     "y": 2300,
@@ -4466,7 +4467,7 @@
     "id": "c_ui_trends",
     "type": "comment",
     "z": "tab_ui",
-    "name": "\u2500\u2500 Trend charts (1h rolling) \u2500\u2500",
+    "name": "── Trend charts (1h rolling) ──",
     "info": "",
     "x": 640,
     "y": 2840,
@@ -4601,8 +4602,8 @@
     "type": "ui-chart",
     "z": "tab_ui",
     "group": "ui_grp_tr_dq",
-    "name": "\u0394Q \u2014 inflow \u2212 outflow",
+    "name": "ΔQ — inflow − outflow",
-    "label": "\u0394Q",
+    "label": "ΔQ",
     "order": 1,
     "chartType": "line",
     "interpolation": "linear",
@@ -4616,7 +4617,7 @@
     "xAxisFormatType": "auto",
     "xmin": "",
     "xmax": "",
-    "yAxisLabel": "m\u00b3/h",
+    "yAxisLabel": "m³/h",
     "yAxisProperty": "payload",
     "yAxisPropertyType": "msg",
     "ymin": "",
@@ -4740,7 +4741,7 @@
     "xAxisFormatType": "auto",
     "xmin": "",
     "xmax": "",
-    "yAxisLabel": "m\u00b3/h",
+    "yAxisLabel": "m³/h",
     "yAxisProperty": "payload",
     "yAxisPropertyType": "msg",
     "ymin": "",
@@ -4909,15 +4910,15 @@
   {
     "id": "tab_drivers",
     "type": "tab",
-    "label": "\ud83c\udf9b\ufe0f Demo Drivers",
+    "label": "🎛️ Demo Drivers",
     "disabled": false,
-    "info": "Inflow generator. The operator picks a SCENARIO (Constant / Sine / Diurnal / Storm) on the dashboard and sets a BASELINE m\u00b3/h value. Every second this generator emits q_in to the PS based on the active scenario + baseline.\n\nOutflow is implicit: the pumps drain the basin via MGC."
+    "info": "Inflow generator. The operator picks a SCENARIO (Constant / Sine / Diurnal / Storm) on the dashboard and sets a BASELINE m³/h value. Every second this generator emits q_in to the PS based on the active scenario + baseline.\n\nOutflow is implicit: the pumps drain the basin via MGC."
   },
   {
     "id": "c_drv_title",
     "type": "comment",
     "z": "tab_drivers",
-    "name": "\ud83c\udf9b\ufe0f DEMO DRIVERS \u2014 operator-driven inflow generator",
+    "name": "🎛️ DEMO DRIVERS — operator-driven inflow generator",
     "info": "",
     "x": 640,
     "y": 20,
@@ -5039,15 +5040,15 @@
   {
     "id": "tab_setup",
     "type": "tab",
-    "label": "\u2699\ufe0f Setup & Init",
+    "label": "⚙️ Setup & Init",
     "disabled": false,
-    "info": "One-shot deploy-time injects:\n \u2022 MGC scaling = normalized + mode = optimalcontrol\n \u2022 all pumps mode = auto\n \u2022 initial inflow baseline + scenario\n\nDisable this tab in production."
+    "info": "One-shot deploy-time injects:\n • MGC scaling = normalized + mode = optimalcontrol\n • all pumps mode = auto\n • initial inflow baseline + scenario\n\nDisable this tab in production."
   },
   {
     "id": "c_setup_title",
     "type": "comment",
     "z": "tab_setup",
-    "name": "\u2699\ufe0f SETUP & INIT \u2014 one-shot deploy-time injects",
+    "name": "⚙️ SETUP & INIT — one-shot deploy-time injects",
     "info": "",
     "x": 640,
     "y": 20,
@@ -5176,7 +5177,7 @@
     "id": "setup_inflow_baseline",
     "type": "inject",
     "z": "tab_setup",
-    "name": "inflow baseline = 25 m\u00b3/h (nominal)",
+    "name": "inflow baseline = 25 m³/h (nominal)",
     "props": [
       {
         "p": "topic",
@@ -5307,7 +5308,7 @@
   {
     "id": "tab_telemetry",
     "type": "tab",
-    "label": "\ud83d\udcc8 Telemetry",
+    "label": "📈 Telemetry",
     "disabled": false,
     "info": "InfluxDB writer: every EVOLV node's port-1 telemetry is fanned in via the evt:tlm link channel, converted to line protocol, and POSTed to InfluxDB v2 (org=evolv, bucket=telemetry).\n\nPattern adapted from docker/demo-flow.json."
   },
@@ -5315,7 +5316,7 @@
     "id": "c_tlm_title",
     "type": "comment",
     "z": "tab_telemetry",
-    "name": "\ud83d\udcc8 TELEMETRY \u2014 InfluxDB writer",
+    "name": "📈 TELEMETRY — InfluxDB writer",
     "info": "",
     "x": 640,
     "y": 20,
@@ -5357,7 +5358,7 @@
     "id": "fn_tlm_to_lp",
     "type": "function",
     "z": "tab_telemetry",
-    "name": "\u2192 InfluxDB line protocol",
+    "name": "→ InfluxDB line protocol",
     "func": "const p = msg.payload;\nif (!p || !p.measurement || !p.fields) return null;\nconst esc = (s) => String(s)\n  .replace(/,/g, '\\\\,').replace(/ /g, '\\\\ ').replace(/=/g, '\\\\=');\nconst tags = Object.entries(p.tags || {})\n  .filter(([k, v]) => v !== undefined && v !== null && v !== '')\n  .map(([k, v]) => `${esc(k)}=${esc(v)}`).join(',');\nconst fieldPairs = Object.entries(p.fields)\n  .filter(([k, v]) => v !== undefined && v !== null)\n  .map(([k, v]) => {\n    if (typeof v === 'number' && Number.isFinite(v)) return `${esc(k)}=${v}`;\n    if (typeof v === 'boolean') return `${esc(k)}=${v}`;\n    return `${esc(k)}=\"${String(v).replace(/\"/g, '\\\\\"')}\"`;\n  });\nif (fieldPairs.length === 0) return null;\nconst ts = Date.now() * 1000000;\nmsg.payload = `${esc(p.measurement)}${tags ? ',' + tags : ''} `\n  + `${fieldPairs.join(',')} ${ts}`;\n// Hint the join node to fire on size or timeout.\nmsg.topic = 'tlm';\nreturn msg;",
     "outputs": 1,
     "noerr": 0,
@@ -5446,7 +5447,7 @@
     "type": "function",
     "z": "tab_telemetry",
     "name": "Count writes",
-    "func": "const lines = Number(msg.lineCount) || 0;\nconst writes = (global.get('influx_writes') || 0) + 1;\nconst totalLines = (global.get('influx_lines') || 0) + lines;\nglobal.set('influx_writes', writes);\nglobal.set('influx_lines', totalLines);\nconst errors = global.get('influx_errors') || 0;\nif (msg.statusCode && msg.statusCode >= 400) {\n  global.set('influx_errors', errors + 1);\n  node.status({fill:'red', shape:'ring',\n    text:`ERR ${errors+1}: ${msg.statusCode}`});\n} else {\n  node.status({fill:'green', shape:'dot',\n    text:`${writes} POSTs \u00b7 ${totalLines} lines (${errors} err)`});\n}\nreturn null;",
+    "func": "const lines = Number(msg.lineCount) || 0;\nconst writes = (global.get('influx_writes') || 0) + 1;\nconst totalLines = (global.get('influx_lines') || 0) + lines;\nglobal.set('influx_writes', writes);\nglobal.set('influx_lines', totalLines);\nconst errors = global.get('influx_errors') || 0;\nif (msg.statusCode && msg.statusCode >= 400) {\n  global.set('influx_errors', errors + 1);\n  node.status({fill:'red', shape:'ring',\n    text:`ERR ${errors+1}: ${msg.statusCode}`});\n} else {\n  node.status({fill:'green', shape:'dot',\n    text:`${writes} POSTs · ${totalLines} lines (${errors} err)`});\n}\nreturn null;",
     "outputs": 1,
     "noerr": 0,
     "initialize": "",