Expand governed Dataflow editor and node library

src/govoplan_dataflow/backend/manifest.py

@@ -11,11 +11,17 @@ from govoplan_core.core.modules import (
     FrontendModule,
     MigrationSpec,
     ModuleInterfaceProvider,
+    ModuleInterfaceRequirement,
+    ModuleContext,
     ModuleManifest,
     NavItem,
     PermissionDefinition,
     RoleTemplate,
 )
+from govoplan_core.core.tabular_sources import (
+    CAPABILITY_CONNECTORS_TABULAR_SNAPSHOT_WRITER,
+    CAPABILITY_CONNECTORS_TABULAR_SOURCES,
+)
 from govoplan_core.db.base import Base
 from govoplan_dataflow.backend.db import models as dataflow_models
 
@@ -116,14 +122,20 @@ DOCUMENTATION = (
             "audit",
         ),
         metadata={
-            "first_slice": "Inline source, filter, select, aggregate, sort, limit, output, revisioning, and bounded preview.",
+            "first_slice": (
+                "Inline and connector sources, union, join, filter, deduplication, select, "
+                "derived columns, aggregate, sort, limit, output, revisioning, and bounded preview."
+            ),
             "sql_safety": "Constrained AST compilation only; no pass-through execution.",
         },
     ),
 )
 
 
-def _dataflow_router(_context):
+def _dataflow_router(context: ModuleContext):
+    from govoplan_dataflow.backend.runtime import configure_runtime
+
+    configure_runtime(registry=context.registry, settings=context.settings)
     from govoplan_dataflow.backend.router import router
 
     return router
@@ -163,12 +175,30 @@ manifest = ModuleManifest(
         "risk_compliance",
         "workflow",
     ),
+    optional_capabilities=(
+        CAPABILITY_CONNECTORS_TABULAR_SOURCES,
+        CAPABILITY_CONNECTORS_TABULAR_SNAPSHOT_WRITER,
+    ),
     provides_interfaces=(
         ModuleInterfaceProvider(name="dataflow.pipeline_catalog", version=MODULE_VERSION),
         ModuleInterfaceProvider(name="dataflow.pipeline_preview", version=MODULE_VERSION),
         ModuleInterfaceProvider(name="dataflow.run_lifecycle", version=MODULE_VERSION),
         ModuleInterfaceProvider(name="dataflow.dataset_output", version=MODULE_VERSION),
     ),
+    requires_interfaces=(
+        ModuleInterfaceRequirement(
+            name="connectors.tabular_sources",
+            version_min="0.1.0",
+            version_max_exclusive="1.0.0",
+            optional=True,
+        ),
+        ModuleInterfaceRequirement(
+            name="connectors.tabular_snapshot_writer",
+            version_min="0.1.0",
+            version_max_exclusive="1.0.0",
+            optional=True,
+        ),
+    ),
     permissions=PERMISSIONS,
     role_templates=ROLE_TEMPLATES,
     nav_items=(