Improve sample metadata consistency and coverage

- Add Control Station to demonstrate more location types
- Add Control Valve and PLC Controller to use more equipment types
- Add Valve Position and Emergency Stop data types
- Better coverage of core tag categories
- More realistic industrial automation scenario
- Maintains same custom tags but with better categorization

Co-authored-by: openhands <openhands@all-hands.dev>

sample_metadata.json

@@ -23,6 +23,18 @@
       ],
       "attributes": {},
       "description": "Emergency backup pumping station"
+    },
+    "station_control": {
+      "id": "station_control",
+      "name": "Control Station",
+      "tags": [
+        "local",
+        "control",
+        "automation",
+        "water_system"
+      ],
+      "attributes": {},
+      "description": "Main control and monitoring station"
     }
   },
   "equipment": {
@@ -77,6 +89,32 @@
       "attributes": {},
       "description": "Water flow rate measurement device",
       "station_id": "station_main"
+    },
+    "valve_control": {
+      "id": "valve_control",
+      "name": "Control Valve",
+      "tags": [
+        "valve",
+        "control",
+        "automation",
+        "safety"
+      ],
+      "attributes": {},
+      "description": "Flow control valve with position feedback",
+      "station_id": "station_main"
+    },
+    "controller_plc": {
+      "id": "controller_plc",
+      "name": "PLC Controller",
+      "tags": [
+        "controller",
+        "automation",
+        "control",
+        "industrial"
+      ],
+      "attributes": {},
+      "description": "Programmable Logic Controller for system automation",
+      "station_id": "station_control"
     }
   },
   "data_types": {
@@ -142,40 +180,72 @@
       "min_value": 0,
       "max_value": 1000,
       "default_value": 500
+    },
+    "position_valve": {
+      "id": "position_valve",
+      "name": "Valve Position",
+      "tags": [
+        "setpoint",
+        "feedback",
+        "control",
+        "automation"
+      ],
+      "attributes": {},
+      "description": "Control valve position command and feedback",
+      "units": "%",
+      "min_value": 0,
+      "max_value": 100,
+      "default_value": 0
+    },
+    "emergency_stop": {
+      "id": "emergency_stop",
+      "name": "Emergency Stop",
+      "tags": [
+        "command",
+        "safety",
+        "alarm",
+        "emergency"
+      ],
+      "attributes": {},
+      "description": "Emergency stop command and status",
+      "units": null,
+      "min_value": null,
+      "max_value": null,
+      "default_value": null
     }
   },
   "all_tags": [
-    "active",
-    "control",
-    "safety",
-    "controller",
-    "water_system",
-    "sensor",
-    "optimization",
-    "diagnostic",
     "industrial",
-    "primary",
-    "emergency",
-    "secondary",
-    "motor",
-    "fault",
-    "monitoring",
-    "status",
-    "alarm",
-    "pump",
-    "municipal",
-    "actuator",
-    "healthy",
-    "setpoint",
-    "valve",
-    "inactive",
-    "backup",
-    "remote",
-    "feedback",
     "command",
     "measurement",
-    "maintenance",
+    "municipal",
+    "fault",
+    "emergency",
+    "monitoring",
+    "control",
+    "primary",
+    "water_system",
+    "active",
+    "controller",
+    "sensor",
+    "diagnostic",
+    "status",
+    "optimization",
+    "setpoint",
     "automation",
-    "local"
+    "maintenance",
+    "backup",
+    "remote",
+    "pump",
+    "secondary",
+    "local",
+    "alarm",
+    "inactive",
+    "feedback",
+    "safety",
+    "valve",
+    "motor",
+    "actuator",
+    "healthy"
   ]
 }