feat(runtime): add process watch patterns, unified backup/import, pluggable context engine, token usage, and codex device login

workspace/USER.md

@@ -7,11 +7,30 @@ _Learn about the person you're helping. Update this as you go._
 - **Pronouns:** _(optional)_
 - **Timezone:**
 - **Notes:**
+- **Primary language(s):**
+- **Decision style:** _(fast default / wants options / risk-sensitive)_
+- **Tooling preference:** _(CLI-first / WebUI-first / mixed)_
+- **Release preference:** _(canary-first / direct-prod with safeguards)_
+- **Communication preference:** _(short status / detailed rationale)_
 
 ## Context
 
 _(What do they care about? What projects are they working on? What annoys them? What makes them laugh? Build this over time.)_
 
+## Working Agreements
+
+- Record only information that improves future execution quality.
+- Prefer verifiable facts over interpretations.
+- When uncertain, mark as `hypothesis` and avoid persisting as hard preference.
+
+## Update Protocol
+
+- When adding a new stable preference, include:
+  - `source` (where it came from)
+  - `confidence` (`low`/`medium`/`high`)
+  - `last_verified` (YYYY-MM-DD)
+- Remove stale preferences that have been contradicted by recent behavior.
+
 ---
 
 The more you know, the better you can help. But remember — you're learning about a person, not building a dossier. Respect the difference.