Initial commit: ADAM self-improvement layer for Claude Code

- 8 friction signals via lightweight hook (correction, retry_loop, weak_agent,
  tool_error_loop, dead_end, edit_churn, build_loop, subagent_dispatch_pattern)
- Deterministic confidence rubric with cross-session evidence gate
- /reflect skill to dispatch the analyst subagent and walk the queue
- Skill overlap detection (prefer skill_edit over skill_new on collision)
- Solution synthesis from transcript context for new skill drafts
- Soft-delete trash, never hard rm
- 18 tests covering all signals

.gitignore

@@ -0,0 +1,18 @@
+.DS_Store
+node_modules/
+*.log
+
+# runtime data — never commit
+adam/journal.jsonl
+adam/journal/*.jsonl
+adam/state.json
+adam/usage.json
+adam/proposals/*.md
+adam/applied/*.md
+adam/rejected/*.md
+adam/trash/
+!adam/journal/.gitkeep
+!adam/proposals/.gitkeep
+!adam/applied/.gitkeep
+!adam/rejected/.gitkeep
+!adam/trash/.gitkeep