docs(claude-log): add session entry for Phase 4.4 + Phase 2.5.10

https://claude.ai/code/session_01SE5WrUuc6LWTmZC8WBXKY4

Author: claude

claude-share/core/claude-log.md

@@ -4,6 +4,58 @@
 
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+## Session: 2026-02-20 | Phase 4.4 + Phase 2.5.10 — Cross-Session Context + Quotes & Personality (Session: session_01SE5WrUuc6LWTmZC8WBXKY4)
+
+**AI:** Claude Opus 4.6
+**Branch:** `claude/implement-p1-guardrails-DcOgI`
+**Status:** Completed
+
+### Summary
+Implemented two features in one session: Phase 4.4 (cross-session context continuity) completing Phase 4, and Phase 2.5.10 (quotes & personality) completing Phase 2.5.
+
+### Changes Made
+
+**Phase 4.4 — Cross-session context continuity:**
+1. Extended `LastTaskSummary` with `resultSummary` field (first 500 chars of model's final response)
+2. Increased cross-task context TTL from 1h to 24h
+3. Added `SessionSummary` interface — per-session metadata with topic, result, tools, category
+4. Added `SessionHistory` ring buffer (20 entries per user, stored at `learnings/{userId}/sessions.json`)
+5. Added `storeSessionSummary()` — appends to ring buffer, evicts oldest when full
+6. Added `loadSessionHistory()` — reads from R2 with error handling
+7. Added `getRelevantSessions()` — keyword-scored relevance (topic + result overlap, category hints, recency, success)
+8. Added `formatSessionsForPrompt()` — concise injection format with continuity hint
+9. Updated `formatLastTaskForPrompt()` to include result snippet when available
+10. Task processor stores sessions on both success and failure paths
+11. Handler injects session context at all 3 system prompt sites (main chat, vision, orchestra)
+
+**Phase 2.5.10 — Quotes & personality:**
+1. Added `fetchRandomQuote()` — Quotable API (`api.quotable.io/quotes/random`)
+2. Added `fetchRandomAdvice()` — Advice Slip API (`api.adviceslip.com/advice`) as fallback
+3. Added `fetchBriefingQuote()` — cascading try (quote → advice → empty), exported for testing
+4. Added quote section to `generateDailyBriefing()` via `Promise.allSettled` (zero latency impact)
+5. Quote appears at end of briefing, silently skipped if both APIs fail
+
+### Files Modified
+- `src/openrouter/learnings.ts` — SessionSummary types, ring buffer storage/loading, relevance scoring, formatting, extended LastTaskSummary
+- `src/openrouter/learnings.test.ts` — 19 new tests for session functions + updated TTL/resultSummary tests
+- `src/openrouter/tools.ts` — fetchRandomQuote, fetchRandomAdvice, fetchBriefingQuote, briefing integration
+- `src/openrouter/tools.test.ts` — 7 new tests for quotes + updated briefing mocks
+- `src/durable-objects/task-processor.ts` — storeSessionSummary calls on success/failure, resultSummary extraction
+- `src/durable-objects/task-processor.test.ts` — storeSessionSummary mock
+- `src/telegram/handler.ts` — getSessionContext method, session context injection at 3 sites
+
+### Tests
+- [x] 820 tests pass (30 new: 19 learnings + 7 quotes + 4 updated)
+- [x] Typecheck passes
+
+### Notes for Next Session
+- Phase 4 is 100% complete (4.1-4.4 all done)
+- Phase 2.5 is 100% complete (2.5.1-2.5.10 all done)
+- Next candidates: Phase 5.5 (web search tool), Phase 5.1 (multi-agent review), Phase 6.2 (response streaming)
+- Codex prompt generated for Phase 5.5 (Brave Search API web_search tool)
+
+---
+
 ## Session: 2026-02-20 | Phase 2.4 — Acontext Sessions Dashboard in Admin UI (Session: session_01SE5WrUuc6LWTmZC8WBXKY4)
 
 **AI:** Claude Opus 4.6 (review & integration) + Codex GPT-5.2 (5 candidate implementations)