Codemod db pass-through calls to domain modules: tasks + agents (C1 part 1/3)

Rewrite ~525 call sites from `db.<method>()` to `db.<module>.<method>()`
for tasks and agents domains (including `getAgent`/`findAgent`/`getTask`
which live on the `entityCrud` field). Delete the corresponding
pass-through methods on AppDatabaseBase. Structural types that narrowed
`db` to a bag of flat methods (CapabilityMatchDb, EscalationDeps,
SweepStaleReviewsDeps) are reshaped to match the new namespace. Internal
callback references inside database.ts/database-base.ts now invoke the
owning module directly (e.g. `this.agents.saveAgent`) rather than the
deleted pass-through.

The codemod lives at scripts/codemod/remove-appdatabase-passthrough.mjs
and filters by owning module + optional explicit method list. It is
idempotent and does not re-rewrite already-namespaced calls.

src/main/service-graph/create-orchestration-service.ts

@@ -93,9 +93,9 @@ export function buildOrchestrationService({
     },
     evaluatePreRunSessionRotation: (agentId, connectorId) => {
       try {
-        const agent = db.getAgent(agentId);
+        const agent = db.entityCrud.getAgent(agentId);
         if (!agent.sessionId) return { rotated: false, handoff: null, sessionId: null };
-        const session = db.getSessionById(agent.sessionId);
+        const session = db.tasks.getSessionById(agent.sessionId);
         if (!session) return { rotated: false, handoff: null, sessionId: agent.sessionId };
         const result = sessionService.evaluateRotation(session);
         if (result.shouldRotate) {