docs(timeline): update schedule adherence Day 102 (2026-04-12)
Refresh Day 102 entries using Forgejo telemetry to capture scope expansion,
milestone progress, and active session data.
- Update today marker to 2026-04-12 in both Gantt charts
- Update Gantt update log for Day 102 (cycle 1)
- Update footer date and open PR count (225→257)
- Update Current Status Summary for Day 102
- Append Day 102 schedule adherence tables for milestones and tracks
- Note key merges: dual-account PR review arch, curl-only reviewer,
spec Section 22, ATM centralization, supervisor fresh-launch fix
- Milestone scope growth: M3 770→948, M4 220→233, M5 313→345,
M6 1085→1181, M7 400→433, M8 944→956, M9 475→489
ISSUES CLOSED: #7912
HAL9000
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