feat: add deadline search on project sync/init

.agents/skills/project-init/SKILL.md

@@ -82,10 +82,40 @@ git log --format="%an|%ae" | sort | uniq -c | sort -rn
 ### Technical
 - architecture-term-1
 
+### Deadline & Timeline Tracking
+- deadline
+- due date
+- target date
+- ETA
+- "by when"
+- "ship by"
+- milestone
+- launch date
+- release date
+- "when will"
+- "when is"
+- pushed back
+- extended
+- slipped
+- delayed
+- ahead of schedule
+- behind schedule
+
 ## Entity Types Priority
 1. threaded_conversation (Zulip)
 2. meeting (recordings)
-3. [Exclude: calendar, email, document if not relevant]
+3. calendar_event (for deadline tracking)
+4. [Exclude: email, document if not relevant]
+
+## Deadline Discovery
+
+During initial data gathering, search for deadline-related discussions:
+- **Direct mentions**: "deadline", "due date", "target", "ETA", "launch date"
+- **Timeline discussions**: When delivery dates are discussed or negotiated
+- **Changes**: Deadline extensions, delays, accelerations
+- **Commitments**: Statements like "we'll ship by X", "targeting Y for release"
+
+Track these with dates, sources, and any context about rationale for changes.
 ```
 
 ## Step 3: Create Project Dashboard (Living Document)
@@ -159,6 +189,23 @@ This is the **entry point** — the living document showing current status.
 
 ---
 
+## Deadline History
+
+Track when deadlines were discussed, committed to, or changed. This shows the evolution of project timeline expectations.
+
+### Current Commitments
+| Deliverable | Current Target | Source | Confidence |
+|-------------|---------------|--------|------------|
+| [Feature/Milestone] | [Date] | [Meeting/Thread] | [High/Medium/Low] |
+
+### Timeline Evolution
+| Date | Change | Previous | New | Reason | Source |
+|------|--------|----------|-----|--------|--------|
+| [Date] | Extended | [Old Date] | [New Date] | [Why changed] | [Thread/Meeting] |
+| [Date] | Committed | - | [Date] | [Initial commitment context] | [Thread/Meeting] |
+
+---
+
 ## Recent Decisions
 
 ### Week [N] (Current)