feat(pumpingStation): realistic defaults, ramp-foot visual fix, manual-mode visibility, dashboard example

Editor + schema defaults
- pumpingStation.html: drag-in defaults now reflect a realistic basin
  (volume=50 m³, height=4 m, inflowLevel=1.5, outflowLevel=0.2,
  overflowLevel=3.8, startLevel=1, stopLevel=0.5, minLevel=0.3,
  maxLevel=3.8). Old defaults left every level field null.

Visual bug fix
- src/editor/mode-preview.js: the level-based ramp curve in the editor
  was being drawn with foot=startLevel via buildPath(start, start, max).
  The runtime in control/levelBased.js has always used inflowLevel as
  the ramp foot. Pass buildPath(start, upFoot, max) where upFoot falls
  back to start when inflowLevel is missing, matching the runtime.

Manual mode observability
- src/specificClass.js: store last forwarded demand on this._manualDemand;
  surface as `mode` and `manualDemand` in getOutput(); call
  notifyOutputChanged() on forwardDemandToChildren and on changeMode so
  Port 0/1 emit even with no children registered. Status badge compacted
  to `mode | dir% | net m³/h` + `Qd=X m³/h` in manual mode.

Examples cleanup
- Drop stale 02-Integration.json, 03-Dashboard.json, basic-dashboard.flow.json,
  standalone-demo.js.
- 01-Basic.json: numbered driver groups (1. Control mode … 4. Calibration),
  Debug-outputs group, fixed typos and HOW-TO-USE; Port 1 debug now active.
- New 02-Dashboard.json: FlowFuse Dashboard 2.0 with Controls (7 buttons),
  Status (7 ui-text rows), Trends (4 ui-charts: level / volume / volume% /
  flow in-out-net), Raw output (ui-template dumping every Port 0 field).
  Fan-out function pattern-matches the 4-segment measurement keys by
  prefix instead of hardcoding childId, converts flow m³/s → m³/h, and
  caches last-known values so deltas never blank a row.
- examples/README.md realigned to the two-file set.

Wiki
- Home.md: 5 image placeholders replaced with the provided screenshots
  (01-node-and-editor, 02-basic-flow, 03-wiring-standalone,
  04-wiring-integrated) and the demo GIF (01-basic-demo).
- Reference-Examples.md: shipped-files table reduced to 01-Basic +
  02-Dashboard, Example-01 section uses the screenshot + GIF, Example-02
  rewritten as Dashboard (kept screenshot/GIF callouts open for those
  captures), Example-03/Integration sections + their debug-recipes row
  removed.

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

src/specificClass.js

@@ -44,6 +44,12 @@ class PumpingStation extends BaseDomain {
     this.controlState = { percControl: 0 };
     this.state = { direction: 'steady', netFlow: 0, flowSource: null, seconds: null, remainingSource: null };
 
+    // Last operator demand from set.demand in manual mode. Stored on the
+    // host so getOutput()/status reflect it even when no children are
+    // registered yet (otherwise forwardDemand is invisible on Port 0/1).
+    // Cleared on mode change away from manual.
+    this._manualDemand = null;
+
     // Level-armed hysteresis state — ported from basin-docs `_controlLevelBased`.
     // Exposed as instance fields because the e2e/basic tests assert on them
     // directly. levelBased strategy reads/writes via the same names.
@@ -172,6 +178,8 @@ class PumpingStation extends BaseDomain {
     if (this.config.control.allowedModes?.has?.(newMode)) {
       this.logger.info(`Control mode changing from ${this.mode} to ${newMode}`);
       this.mode = newMode;
+      if (newMode !== 'manual') this._manualDemand = null;
+      this.notifyOutputChanged();
     } else {
       this.logger.warn(`Attempted to change to unsupported control mode: ${newMode}`);
     }
@@ -183,7 +191,11 @@ class PumpingStation extends BaseDomain {
   setManualInflow(value, ts = Date.now(), unit)             { calibration.setManualInflow(this, value, ts, unit); }
   setManualOutflow(value, ts = Date.now(), unit)            { calibration.setManualOutflow(this, value, ts, unit); }
 
-  forwardDemandToChildren(demand) { return control.manual.forwardDemand(this.context(), demand); }
+  forwardDemandToChildren(demand) {
+    this._manualDemand = Number.isFinite(demand) ? demand : null;
+    this.notifyOutputChanged();
+    return control.manual.forwardDemand(this.context(), demand);
+  }
 
   // Direct delegations preserved so existing tests can drive the strategy
   // without re-mocking the dispatch layer.
@@ -220,6 +232,8 @@ class PumpingStation extends BaseDomain {
     out.flowSource = this.state.flowSource;
     out.timeleft = this.state.seconds;
     out.percControl = this.controlState.percControl;
+    out.mode = this.mode;
+    out.manualDemand = this._manualDemand;
 
     // Derived safety thresholds — exposed so editor + dashboards can show
     // the dryRunLevel and highVolumeSafetyLevel without recomputing.
@@ -247,15 +261,14 @@ class PumpingStation extends BaseDomain {
       steady:   { arrow: '⏸️', fill: 'green' },
     };
     const { arrow = '❔', fill = 'grey' } = STYLES[this.state?.direction] || {};
-    const vol = this.measurements.type('volume').variant('predicted').position('atequipment').getCurrentValue('m3') ?? 0;
     const pct = this.measurements.type('volumePercent').variant('predicted').position('atequipment').getCurrentValue() ?? 0;
-    const maxVol = this.basin?.maxVolAtOverflow ?? 0;
     const netFlowM3h = (this.state?.netFlow ?? 0) * 3600;
-    const seconds = this.state?.seconds;
-    const tStr = seconds != null ? `t≈${Math.round(seconds / 60)} min` : null;
+    const mode = this.mode || '?';
+    const manualPart = this.mode === 'manual' && Number.isFinite(this._manualDemand)
+      ? `Qd=${this._manualDemand.toFixed(0)} m³/h` : null;
 
     return statusBadge.compose(
-      [`${arrow} ${pct.toFixed(1)}%`, `V=${vol.toFixed(2)} / ${maxVol.toFixed(2)} m³`, `net: ${netFlowM3h.toFixed(0)} m³/h`, tStr],
+      [mode, `${arrow} ${pct.toFixed(1)}%`, `net: ${netFlowM3h.toFixed(0)} m³/h`, manualPart],
       { fill, shape: 'dot' }
     );
   }