chore(harness): make repository agent-ready

Add concise routed context, task-aware agent roles, focused skills, and structured learning promotion.\n\nUnify local development and workspace tooling, add layered test and E2E verification, harden MCP authentication, and gate deployment behind verification and explicit production promotion.

.codex/skills/mobile-simulator/SKILL.md

@@ -0,0 +1,18 @@
+---
+name: mobile-simulator
+description: Build, launch, and verify Sauci on iOS or Android simulators with local backend wiring and captured evidence. Use for native UI, navigation, permissions, or device behavior.
+---
+
+# Mobile simulator verification
+
+Read `apps/mobile/AGENTS.md` and `apps/mobile/DESIGN.md` for UI work.
+
+1. Start/reset the local stack through the `dev-local` skill.
+2. Use `scripts/dev-local.sh ios` or `android`; do not embed remote credentials.
+3. Drive stable accessibility labels/test IDs. Use `maestro test e2e/maestro` for
+   committed flows and platform simulator tools for focused exploration.
+4. Capture the final visible state and relevant Metro/native logs under
+   `evidence/`.
+5. Report device/runtime, steps, expected versus observed, and artifact paths.
+
+Do not claim a native result from Expo web or component tests alone.