merge: AgentProject membership — the junction is now load-bearing

Merges feat/agent-project-membership (task 166/152). An agent can finally join
many projects: membership routes, per-membership role and optional brain
override, chat resolving context from the membership, and CLI attach-agent /
detach-agent / get memberships. The legacy Agent.projectId fallback is kept for
this release as the schema comment promises.

Conflict resolved in main.ts: that branch added its RBAC case to
mapUrlToPermission inline, while this branch had extracted the function to
middleware/url-permission.ts so it could be tested. Kept the extraction and
ported the case into it — joining a team is `edit:agents:<name>`, not
`create:agents`, which is the authority to mint a whole agent.

Also fixes something the extraction makes possible. security.test.ts contained a
hand-copied reproduction of mapUrlToPermission, because main.ts self-invokes
main() and nothing in it was importable. A security test asserting against a
copy stops testing the system the moment the real one changes, and this copy had
already drifted. It now imports the real function; all 18 assertions still pass,
against the code that actually runs.

Local: build clean, workspace 2550 passed, lint unchanged at 794 errors.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N4wNHWf7xSwnZCWpJcyv9p

.taskmaster/tasks/task_025.md

@@ -0,0 +1,35 @@
+# Task ID: 25
+
+**Title:** Rename local-proxy to mcplocal
+
+**Status:** done
+
+**Dependencies:** None
+
+**Priority:** high
+
+**Description:** Rename the src/local-proxy directory to src/mcplocal and update all package references, imports, and build configurations throughout the monorepo.
+
+**Details:**
+
+1. Rename directory: `mv src/local-proxy src/mcplocal`
+2. Update package.json name from `@mcpctl/local-proxy` to `@mcpctl/mcplocal`
+3. Update pnpm-workspace.yaml if needed
+4. Update all imports in other packages that reference local-proxy:
+   - Search for `@mcpctl/local-proxy` and replace with `@mcpctl/mcplocal`
+   - Check tsconfig references and path mappings
+5. Update any scripts in package.json root that reference local-proxy
+6. Update docker-compose files in deploy/ if they reference local-proxy
+7. Update documentation and README references
+8. Run `pnpm install` to regenerate lockfile with new package name
+9. Verify TypeScript compilation succeeds: `pnpm build`
+10. Run existing tests to ensure nothing broke: `pnpm test`
+
+**Test Strategy:**
+
+1. Verify directory rename completed: `ls src/mcplocal`
+2. Verify package.json has correct name
+3. Run `pnpm install` - should complete without errors
+4. Run `pnpm build` - all packages should compile
+5. Run `pnpm test` - all existing tests should pass
+6. Grep codebase for 'local-proxy' - should find no stale references except git history