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/bootstrap/wire-api-server.ts

@@ -75,7 +75,7 @@ export function wireApiServer(deps: WireApiServerDeps): AgentApiServer {
     deps.threadIntegration.onTaskStatusChanged(taskId, companyId, prev, next);
     if (prev === "todo" && next === "in_progress") {
       try {
-        const task = deps.db.getTask(taskId);
+        const task = deps.db.entityCrud.getTask(taskId);
         deps.checkpointEngine.onTaskStarted(taskId, companyId, task.assigneeAgentId);
       } catch (error) {
         log.warn(
@@ -118,7 +118,7 @@ export function wireApiServer(deps: WireApiServerDeps): AgentApiServer {
         },
         input,
       ),
-    onAutoAssignTask: (taskId, companyId) => deps.db.autoAssignTask(taskId, companyId),
+    onAutoAssignTask: (taskId, companyId) => deps.db.tasks.autoAssignTask(taskId, companyId),
     onHumanMessage: (companyId, toAgentId, threadId, waitStateId) => {
       deps.threadIntegration.onHumanMessage(companyId, toAgentId, threadId, waitStateId);
       deps.publishDomainChanged();