siaochuan f24ca87d16 feat(personalization): auto-extract local environment rules from sessions ...

Add a personalization layer that learns the user's local environment from
conversation history and injects discovered rules into the system prompt.

Problem: Every OH user has unique infrastructure (server IPs, data paths,
conda envs, API endpoints, cron schedules) that must be manually configured
in CLAUDE.md or system_prompt. This is tedious and easy to forget.

Solution: Automatically extract environment-specific facts from each session
and persist them as local rules that are injected into future sessions.

How it works:
1. SESSION END: extractor scans conversation for patterns (SSH hosts,
   data paths, conda envs, API endpoints, env vars, Ray config, etc.)
2. PERSISTENCE: facts are merged into ~/.openharness/local_rules/facts.json
   with deduplication and confidence scoring
3. SESSION START: local rules are loaded as markdown and injected into
   the system prompt alongside CLAUDE.md and memory

Files:
- personalization/extractor.py: regex-based fact extraction (10 pattern types)
- personalization/rules.py: facts persistence and rules markdown generation
- personalization/session_hook.py: session-end integration
- prompts/context.py: inject local rules into system prompt
- ui/runtime.py: call extraction at session close (best-effort, non-blocking)
- 12 tests covering extraction, merging, and markdown generation

The extraction is pattern-based (no LLM calls needed), zero-cost, and
runs in <10ms at session end. Facts accumulate over sessions, building
a progressively richer environment profile.

2026-04-08 11:12:39 +08:00

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