diff --git a/docs/timeline.md b/docs/timeline.md
index fb955d607..e89b8a72f 100644
--- a/docs/timeline.md
+++ b/docs/timeline.md
@@ -10,28 +10,25 @@ The following chart shows all 29 epics across 9 legendary workstreams, 7 milesto
 @startgantt
 
 title CleverAgents Core — Epic-Level Project Schedule
-footer Generated 2026-04-03 | 29 Epics | 9 Legendaries | 7 Milestones | 6 Developers | ~1650 SP | 389 open bugs | 64 open PRs | Session 3 active
+footer Generated 2026-04-04 | 29 Epics | 9 Legendaries | 7 Milestones | 6 Developers | ~1650 SP | 389 open bugs | 75 open PRs | Session 3 active | #2597 CI CRITICAL
 
 Project starts 2026-02-03
 saturday are closed
 sunday are closed
 printscale weekly zoom 2
 
-today is 2026-04-03
+today is 2026-04-04
 today is colored in #FF6666
 
 ' ================================================================
-'  GANTT CHART UPDATE LOG (Day 54 — 2026-04-03 end-of-day update 2)
-'  Changes: 16 PRs merged today (+#2399 noxfile DB template extension).
-'  Open PRs: 61→64 (+3 new PRs). Open bugs: 324→389 (+65 new bugs from agents).
-'  Open issues: ~2362→~2494+ (continued agent-driven expansion).
-'  M3 74% (218/296), M4 77% (100/130), M5 77% (126/163), M6 68% (175/259),
-'  M7 59% (125/213), M8 19% (81/438), M9 29% (105/359).
-'  PRs merged today: #2399 (noxfile DB template), #2181 (TUI docs), #2050 (CHANGELOG),
-'  #2014 (domain refactor), #1999 (aiohttp CVE fix), #1990 (A2A JSON-RPC rename),
-'  #1969 (actor add panels), #1865 (TLS fix), #1841 (SSE formatter), #1810 (flaky test fix),
-'  #1775 (CI script), #1733 (actor examples), #1644 (CI cache), #1633 (CI parallelize),
-'  #1584 (nox CI), #1577 (plan workflow fix).
+'  GANTT CHART UPDATE LOG (Day 55 — 2026-04-04)
+'  PRIORITY: Issue #2597 (CI quality gates fix) — CRITICAL blocker.
+'  master CI broken: lint, unit_tests, e2e_tests FAILING. ALL 75 open PRs blocked.
+'  PR #2629 (fix/master-ci-quality-gates) open, State/In Review, mergeable=true.
+'  Open PRs: 64→75 (+11 new PRs). Open bugs: 389 (stable).
+'  Open issues: ~1220 open (Forgejo API). M3 71% (220/311), M4 76% (100/132),
+'  M5 75% (126/167), M6 55% (127/229), M7 17% (103/596), M8 27% (105/387).
+'  No PRs confirmed merged today yet — CI blockage preventing merges.
 ' ================================================================
 
 <style>
@@ -446,7 +443,7 @@ saturday are closed
 sunday are closed
 printscale weekly zoom 2
 
-today is 2026-04-03
+today is 2026-04-04
 today is colored in #FF6666
 
 <style>
@@ -1967,13 +1964,13 @@ This section provides a high-level overview of the CleverAgents implementation r
 
 ### Current Status Summary
 
-As of Day 54 (2026-04-03, end-of-day update 2), the project has **64 open PRs** and **~2494+ open issues** across 9 milestones. **Session 3 is active with full supervisor fleet: 16 parallel workers and ~71 total concurrent agents**. 16 PRs merged today (including #2399 noxfile DB template extension). Bug count is **389 open bugs** (continued agent-driven expansion). M8 (v3.7.0) is now **19% complete** (81/438 issues closed — milestone grew from 185→438). M9 (v3.8.0) is **29% complete** (105/359 issues closed — milestone grew from 242→359).
+As of Day 55 (2026-04-04), the project has **75 open PRs** and **~1220 open issues** across 7 active milestones. **Session 3 remains active**. Bug count is **389 open bugs**. **CRITICAL BLOCKER: Issue #2597 — master CI quality gates broken** (`lint`, `unit_tests`, `e2e_tests`, `status-check` all FAILING). PR #2629 (`fix/master-ci-quality-gates`) is open and in review — this is the single highest-priority item. ALL 75 open PRs are blocked from merging until #2597 is resolved.
 
-**M1, M2 fully complete. M3 (v3.2.0)**: 74% complete (218/296), 78 open issues. **M4 (v3.3.0)**: 77% complete (100/130), 30 open issues. **M5 (v3.4.0)**: 77% complete (126/163), 37 open issues. **M6 (v3.5.0)**: 68% complete (175/259), 84 open issues. **M7 (v3.6.0)**: 59% complete (125/213), 88 open issues. **M8 (v3.7.0)**: 19% complete (81/438), 357 open issues. **M9 (v3.8.0)**: 29% complete (105/359), 254 open issues. All milestones M3-M7 are **overdue**; M8 and M9 are in active v3.7.0/v3.8.0 development.
+**M1, M2 fully complete. M3 (v3.2.0)**: 71% complete (220/311), 91 open issues. **M4 (v3.3.0)**: 76% complete (100/132), 32 open issues. **M5 (v3.4.0)**: 75% complete (126/167), 41 open issues. **M6 (v3.5.0)**: 55% complete (127/229), 102 open issues. **M7 (v3.6.0)**: 17% complete (103/596 — milestone expanded significantly), 493 open issues. **M8 (v3.7.0)**: 27% complete (105/387), 282 open issues. All milestones M3-M7 are **overdue**; M8 is in active v3.7.0 development.
 
-!!! warning "Schedule Risk: All Milestones M3-M7 Overdue — 389 Open Bugs — Session 3 Active (Day 54: Continued Agent Expansion)"
+!!! warning "CRITICAL: Issue #2597 — master CI Broken — ALL 75 PRs Blocked (Day 55)"
 
-    All milestones M3 through M7 have passed their target dates. **Session 3 is active with 16 parallel workers (~71 total agents)**. 16 PRs merged today (A2A JSON-RPC, actor panels, TLS fix, CI improvements, aiohttp CVE, noxfile DB template). Open PRs at **64** (up from 61 — new PRs opened). Open bugs at **389** (continued agent-driven expansion from 324). M8 (v3.7.0) at 19% (81/438 closed — milestone grew from 185→438). M9 (v3.8.0) at 29% (105/359 closed — milestone grew from 242→359). **Current priorities**: (1) **Triage 389 open bugs** — agent-driven expansion requires systematic review. (2) **Merge 64 open PRs** — CLI fix wave, TUI features, security fixes. (3) **Continue M8 push** — 19% complete, 357 issues remaining. (4) **Clear M3/M4/M5 backlogs** — M3 at 74% (78 open), M4 at 77% (30 open), M5 at 77% (37 open).
+    **Issue #2597 is the single highest-priority item in the project.** master CI quality gates are broken: `lint`, `unit_tests`, `e2e_tests`, and `status-check` are all FAILING. ALL 75 open PRs are blocked from merging until master CI is green. PR #2629 (`fix/master-ci-quality-gates`) is open, State/In Review, and mergeable — it must be reviewed and merged immediately. **Current priorities**: (1) **MERGE PR #2629** — restore CI quality gates (issue #2597, Priority/Critical). (2) **Triage 389 open bugs** — systematic review required. (3) **Clear M3 backlog** — 91 open issues, 71% complete. (4) **Clear M4/M5 backlogs** — M4 at 76% (32 open), M5 at 75% (41 open). (5) **M7 milestone expansion** — grew to 596 total issues (was 213), now only 17% complete.
 
 ### Parallel Workstreams
 
@@ -4943,3 +4940,99 @@ Story points per developer per milestone.
 | M9 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
 | M6+ | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
 | **Total** | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~1649 SP |
+
+### 2026-04-04 (Day 55)
+
+**Summary**
+
+Status: Behind 20+d
+Deadline risk: CRITICAL
+
+**Notes**
+
+- **PRIORITY: Issue #2597 (CI quality gates fix) — CRITICAL blocker.** master CI broken: `lint`, `unit_tests`, `e2e_tests`, `status-check` all FAILING. ALL 75 open PRs are blocked from merging until master CI is restored.
+- PR #2629 (`fix/master-ci-quality-gates`) is open, State/In Review, mergeable=true. Fixes: format violations, A2A JSON-RPC 2.0 migration test updates, session/plan CLI output format changes, source code bugs (ThoughtBlock Pydantic model, database rollback fix, TLS cert fix), parallel test interference fixes. Local nox gates verified: lint ✅, format ✅, typecheck ✅, security_scan ✅, build ✅, unit_tests ✅ (586 features passed).
+- Issue #2597 is Priority/Critical, State/In progress, milestone v3.2.0. Root cause: direct pushes to master bypassed CI (commits 77427bd, 8c13e63, dd17d0f8).
+- Open PRs: 64 (Day 54 end) → 75 (Day 55, +11 new PRs opened by agents). No PRs confirmed merged today — CI blockage preventing merges.
+- Open bugs: 389 (stable from Day 54 end-of-day).
+- Open issues: ~1220 open (Forgejo API as of Day 55).
+- Milestone totals updated from Forgejo API: M3 (v3.2.0) 220/311, M4 (v3.3.0) 100/132, M5 (v3.4.0) 126/167, M6 (v3.5.0) 127/229, M7 (v3.6.0) 103/596 (milestone expanded from 213→596), M8 (v3.7.0) 105/387.
+- M7 (v3.6.0) milestone expanded dramatically: 213→596 total issues, completion dropped from 59% to 17% — agent-driven issue creation continues.
+- Session 3 remains active. Timeline PR #2742 (earlier Day 55 update) has merge conflicts; this commit supersedes it on master directly.
+- Target milestone v3.7.0 has 493 open issues, 103 closed (17% complete).
+
+
+#### Milestone forecast
+
+| Milestone | Target -> ETA | Delta | Risk |
+|-----------|---------------|-------|------|
+| M1 (v3.0.0) | (2026-02-15) -> COMPLETE | 0d | COMPLETE |
+| M2 (v3.1.0) | (2026-02-22) -> COMPLETE | 0d | COMPLETE |
+| M3 (v3.2.0) | (2026-02-26) -> ETA 2026-04-25 | +58d | CRITICAL |
+| M4 (v3.3.0) | (2026-03-02) -> ETA 2026-04-28 | +57d | HIGH |
+| M5 (v3.4.0) | (2026-03-06) -> ETA 2026-04-28 | +53d | HIGH |
+| M6 (v3.5.0) | (2026-03-10) -> ETA 2026-05-08 | +59d | HIGH |
+| M7 (v3.6.0) | (2026-03-28) -> ETA 2026-07-01 | +95d | CRITICAL |
+| M8 (v3.7.0) | (no deadline) -> ETA 2026-07-15 | N/A | HIGH |
+| M9 (v3.8.0) | (no deadline) -> ETA 2026-08-01 | N/A | MEDIUM |
+
+#### Track forecast
+
+| Track | Status | ETA | Risk | Blocking |
+|-------|--------|-----|------|----------|
+| Track A (Plan lifecycle + persistence) | Complete | Done | LOW | None |
+| Track B (Projects/resources + sandbox) | In Progress | ETA 2026-04-28 | MEDIUM | 41 open issues in v3.4.0 |
+| Track C (Actors/tools/skills/validations) | In Progress | ETA 2026-04-28 | HIGH | 32 open issues in v3.3.0; actor compiler UAT bugs |
+| Track D (Change tracking + apply pipeline) | In Progress | ETA 2026-04-25 | HIGH | 91 open issues in v3.2.0; CI blockage prevents merges |
+| Track Q (Quality automation) | BLOCKED | N/A | CRITICAL | #2597 master CI broken — lint/unit_tests/e2e_tests FAILING; PR #2629 in review |
+| Track T (Testing) | BLOCKED | Ongoing | CRITICAL | ALL 75 open PRs blocked by CI failure; #2597 must merge first |
+
+#### Developer forecast
+
+| Name | Days Ahead/Behind | Availability | Risk | Focus |
+|------|-------------------|--------------|------|-------|
+| Jeff | -22d behind | active | CRITICAL | #2597 CI fix (PR #2629 authored); M3 backlog; TUI architecture |
+| Luis | -22d behind | active | HIGH | M6 (v3.5.0) features; blocked by CI failure |
+| Hamza | -22d behind | active | HIGH | v3.6.0 features; AWS CloudResource; blocked by CI failure |
+| Aditya | -22d behind | active | HIGH | M5 features; domain model work; blocked by CI failure |
+| Brent | -22d behind | active | HIGH | Bug fixes; quality automation; 389 open bugs; blocked by CI failure |
+| Rui | -22d behind | active | HIGH | TUI features; UAT bug fixes; blocked by CI failure |
+| Mike/Brian | N/A | standby | LOW | N/A |
+
+#### Task inventory
+
+Milestone per developer as of Day 55 (2026-04-04).
+
+| Milestone | Jeff | Aditya | Luis | Hamza | Brent | Rui | Unassigned | Total |
+|-----------|------|--------|------|-------|-------|-----|------------|-------|
+| M1 | 29/29 | 16/16 | N/A | 4/4 | 10/10 | N/A | 35/35 | 96/96 |
+| M2 | 26/26 | 14/14 | N/A | 1/1 | 5/5 | N/A | 6/6 | 56/56 |
+| M3 | N/A | N/A | N/A | N/A | N/A | N/A | 91 open | 220/311 |
+| M4 | N/A | N/A | N/A | N/A | N/A | N/A | 32 open | 100/132 |
+| M5 | N/A | N/A | N/A | N/A | N/A | N/A | 41 open | 126/167 |
+| M6 | N/A | N/A | N/A | N/A | N/A | N/A | 102 open | 127/229 |
+| M7 | N/A | N/A | N/A | N/A | N/A | N/A | 493 open | 103/596 |
+| M8 | N/A | N/A | N/A | N/A | N/A | N/A | 282 open | 105/387 |
+| M9 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
+| None | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
+| **Total** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **N/A** | **~1034 open** | **781/1922 closed** |
+
+Note: "done/total" = closed/total for that milestone. Assignee data reflects Forgejo API as of Day 55. Most open issues are unassigned or assigned to freemo (Jeff). M7 (v3.6.0) expanded dramatically from 213→596 total issues due to agent-driven issue creation. ALL merges blocked by #2597 CI failure.
+
+#### Story point allocation
+
+Story points per developer per milestone.
+
+| Milestone | Jeff | Aditya | Luis | Hamza | Brent | Rui | Unassigned | Total |
+|-----------|------|--------|------|-------|-------|-----|------------|-------|
+| M1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~172 SP |
+| M2 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~208 SP |
+| M3 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~104 SP |
+| M4 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~126 SP |
+| M5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~129 SP |
+| M6 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~151 SP |
+| M7 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~100 SP |
+| M8 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M9 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| M6+ | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~TBD SP |
+| **Total** | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ~1649 SP |