feat(FN-2854): ship node routing persistence and dashboard workflow updates

- Add effective node routing fields to task types/store, persist them in SQLite, and expand regression coverage for node override guard behavior
- Add dashboard and API support for manual memory dream processing/trigger actions plus expanded memory regression tests
- Improve task creation and task detail model/node UX, including quick chat default model selection and workflow/settings UI polish
- Apply mobile/dashboard UX fixes (form input zoom prevention, expand toggle styling, input layout tweaks) and update extension/docs/changelogs for the release

packages/core/src/db.ts

@@ -86,7 +86,7 @@ export function probeFts5(db: DatabaseSync): boolean {
 
 // ── Schema Definition ────────────────────────────────────────────────
 
-const SCHEMA_VERSION = 49;
+const SCHEMA_VERSION = 50;
 
 function normalizeTaskComments(
   steeringComments: SteeringComment[] | undefined,
@@ -1852,6 +1852,15 @@ export class Database {
       });
     }
 
+    // Resolved effective node fields for task routing (FN-2854).
+    // effectiveNodeId is the scheduler-resolved target; effectiveNodeSource explains how it was chosen.
+    if (version < 50) {
+      this.applyMigration(50, () => {
+        this.addColumnIfMissing("tasks", "effectiveNodeId", "TEXT");
+        this.addColumnIfMissing("tasks", "effectiveNodeSource", "TEXT");
+      });
+    }
+
   }
 
   /**