refactor(db)!: adopt project-routed pooled databases

Reorganize WNDB by responsibility and remove legacy scheme endpoints.\n\nRoute analysis and time-series access through project pools, preserve transactional realtime replacement, and refresh GIS materialized views after writes.\n\nAdd database architecture documentation, live pooling coverage, API contract updates, and executable container verification.\n\nBREAKING CHANGE: legacy scheme APIs and flat app.native.wndb module imports are removed.

app/native/wndb/commands/api.py

@@ -0,0 +1,65 @@
+"""Convenience entry points for cascade deletes and option synchronization."""
+
+from ..core.database import API_DELETE, API_UPDATE, ChangeSet
+from .executor import execute_batch_command
+
+
+def _execute(
+    name: str,
+    change_set: ChangeSet,
+    *,
+    operation: str,
+    element_type: str,
+) -> ChangeSet:
+    change_set.operations[0].update(
+        {"operation": operation, "type": element_type}
+    )
+    return execute_batch_command(name, change_set)
+
+
+def delete_junction_cascade(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(
+        name, change_set, operation=API_DELETE, element_type="junction"
+    )
+
+
+def delete_reservoir_cascade(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(
+        name, change_set, operation=API_DELETE, element_type="reservoir"
+    )
+
+
+def delete_tank_cascade(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(name, change_set, operation=API_DELETE, element_type="tank")
+
+
+def delete_pipe_cascade(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(name, change_set, operation=API_DELETE, element_type="pipe")
+
+
+def delete_pump_cascade(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(name, change_set, operation=API_DELETE, element_type="pump")
+
+
+def delete_valve_cascade(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(name, change_set, operation=API_DELETE, element_type="valve")
+
+
+def delete_pattern_cascade(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(
+        name, change_set, operation=API_DELETE, element_type="pattern"
+    )
+
+
+def delete_curve_cascade(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(name, change_set, operation=API_DELETE, element_type="curve")
+
+
+def set_option_ex(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(name, change_set, operation=API_UPDATE, element_type="option")
+
+
+def set_option_v3_ex(name: str, change_set: ChangeSet) -> ChangeSet:
+    return _execute(
+        name, change_set, operation=API_UPDATE, element_type="option_v3"
+    )