pumpingStation schema: rename basin/control thresholds to wiki naming

Matches the 5-threshold convention (dryRunLevel, minLevel, startLevel,
maxLevel, overflowLevel) introduced in the pumpingStation wiki:

  basin.heightInlet              → basin.inflowLevel
  basin.heightOutlet             → basin.outflowLevel
  basin.heightOverflow           → basin.overflowLevel
  control.levelbased.stopLevel   → control.levelbased.minLevel
  control.levelbased.maxFlowLevel → control.levelbased.maxLevel
  control.levelbased.minFlowLevel → removed (redundant with startLevel)
  control.levelbased.startLevel  → unchanged

Description strings tightened to reference the semantic role instead
of generic "min level to scale flow" prose.

Breaking change for existing saved flows. Ties in with pumpingStation
commit a218945 which updates the consumer code.

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

src/configs/pumpingStation.json

@@ -235,7 +235,7 @@
                 "description": "Unit used for level related setpoints and thresholds."
             }
         },
-        "heightInlet": {
+        "inflowLevel": {
             "default": 2,
             "rules": {
                 "type": "number",
@@ -243,7 +243,7 @@
                 "description": "Height of the inlet pipe measured from the basin floor (m)."
             }
         },
-        "heightOutlet": {
+        "outflowLevel": {
             "default": 0.2,
             "rules": {
                 "type": "number",
@@ -251,7 +251,7 @@
                 "description": "Height of the outlet pipe measured from the basin floor (m)."
             }
         },
-        "heightOverflow": {
+        "overflowLevel": {
             "default": 2.5,
             "rules": {
                 "type": "number",
@@ -433,36 +433,28 @@
             }
         },
         "levelbased": {
+            "minLevel": {
+                "default": 1,
+                "rules": {
+                    "type": "number",
+                    "min": 0,
+                    "description": "Below this level the MGC shuts down all pumps (unconditional stop). Above dryRunLevel (safety), below startLevel (DEAD ZONE)."
+                }
+            },
             "startLevel": {
                 "default": 1,
                 "rules": {
                     "type": "number",
                     "min": 0,
-                    "description": "start of pump / group when level reaches this in meters starting from bottom."
+                    "description": "Level at which the pump demand ramp begins at 0 %. Demand scales linearly from startLevel (0 %) to maxLevel (100 %)."
                 }
             },
-            "stopLevel": {
-                "default": 1,
-                "rules": {
-                    "type": "number",
-                    "min": 0,
-                    "description": "stop of pump / group when level reaches this in meters starting from bottom"
-                }
-            },
-            "minFlowLevel": {
-                "default": 1,
-                "rules": {
-                    "type": "number",
-                    "min": 0,
-                    "description": "min level to scale the flow lineair"
-                }
-            },
-            "maxFlowLevel": {
+            "maxLevel": {
                 "default": 4,
                 "rules": {
                     "type": "number",
                     "min": 0,
-                    "description": "max level to scale the flow lineair"
+                    "description": "Level at which the pump demand saturates at 100 %. Above this, demand stays clamped."
                 }
             }
         },
@@ -638,14 +630,6 @@
                 "description": "Volume percentage below which dry run protection activates."
             }
         },
-        "dryRunDebounceSeconds": {
-            "default": 30,
-            "rules": {
-                "type": "number",
-                "min": 0,
-                "description": "Time the low-volume condition must persist before dry-run protection engages (seconds)."
-            }
-        },
         "enableOverfillProtection": {
             "default": true,
             "rules": {
@@ -662,14 +646,6 @@
                 "description": "Volume percentage above which overfill protection activates."
             }
         },
-        "overfillDebounceSeconds": {
-            "default": 30,
-            "rules": {
-                "type": "number",
-                "min": 0,
-                "description": "Time the high-volume condition must persist before overfill protection engages (seconds)."
-            }
-        },
         "timeleftToFullOrEmptyThresholdSeconds": {
             "default": 0,
             "rules": {