Update demo replay validation and testing documentation

- Modified the autodev state to reflect the current testing phase and details of the new `jetson-e2e` tests.
- Enhanced the "How to Test" documentation to provide clearer instructions on the demo replay validation process, including video and tlog alignment steps.
- Updated architectural documentation to include the new demo replay operator flow and its dependencies.
- Documented the removal of deprecated auto-sync features and clarified the operator-facing UI for replay validation.
- Added new entries in the dependencies table for upcoming tasks related to the demo replay flow.

These changes improve clarity and usability for operators and developers working with the demo replay system.

_docs/03_implementation/run_tests_step11_report.md

@@ -634,3 +634,114 @@ Pre-launch fix in commit `a15a062 [AZ-844] Exclude satellite-provider runtime di
 
 Auto-chain → Step 12 (Test-Spec Sync) on next `/autodev` invocation.
 
+---
+
+## Cycle 4 (2026-06-19)
+
+Scope of cycle-4 implementation (5 batches, `batch_01`..`batch_05_cycle4_report.md`):
+
+- Wave-1 housekeeping: AZ-899 architecture compliance baseline
+- Replay-input redesign: AZ-894 CSV adapter, AZ-896 tlog route, AZ-895 auto-sync deprecation, AZ-842 protocol docs
+- AZ-963: Derkachi 60s smoke regressions — Option D+E (xfail + XPASS root-cause fix)
+
+### Local unit suite
+
+```
+.venv/bin/python -m pytest tests/unit/ -v --tb=short
+====== 2307 passed, 84 skipped in 48.68s =======
+```
+
+0 failed. 84 skips classified as legitimate on a macOS dev host:
+
+| Reason | Count | Verdict |
+|--------|------:|---------|
+| Requires Docker compose services (postgres / mock-sat) | 57 | legitimate locally — covered on Jetson e2e lane |
+| Tier-2-only / Jetson hardware (NVML, L4T) | 1 | legitimate |
+| TensorRT / onnxruntime not installed | 7 | legitimate (Tier-2 Jetson only) |
+| Derkachi reference tlog gitignored / absent | 2 | legitimate |
+| AC-1 RSS measurement deferred to e2e | 1 | legitimate |
+| `actionlint` not on PATH (CI-only) | 1 | legitimate |
+| Empty parametrize (`runtime`) | 1 | legitimate |
+| Other env-conditional | 14 | legitimate |
+
+Note: pytest segfaults inside the Cursor sandbox (numpy import during collection); runs cleanly outside sandbox with project `.venv`.
+
+### Jetson e2e
+
+Ran 2026-06-19 via `PATH=".venv/bin:$PATH" JETSON_SSH_ALIAS=jetson bash scripts/run-tests-jetson.sh`.
+Log: `_docs/03_implementation/jetson_runs/2026-06-19_cycle4_run.txt` (wall clock ~9 min incl. rsync + build).
+
+```
+====== 8 failed, 45 passed, 4 skipped, 1 warning in 17.37s =======
+```
+
+#### Failure root causes
+
+| # | Test(s) | Root cause | Category |
+|---|---------|------------|----------|
+| 1 | `test_ac1`..`test_ac6` (6×) | `flight_derkachi.mp4` is a 134-byte Git LFS pointer on disk; rsync excludes LFS blobs → `moov atom not found` / `VideoCapture could not open` | **missing fixture/data** |
+| 2 | `test_smoke_satellite_provider_*` (2×) | `POST …/api/satellite/tiles/inventory` → HTTP 404 from satellite-provider container | **environment / API drift** |
+
+#### AZ-963 gap
+
+`batch_05_cycle4_report.md` documents `@pytest.mark.xfail` on five Derkachi tests, but the working tree has **zero** `xfail` markers in `test_derkachi_1min.py` (grep confirms). Jira AZ-963 is Done; the xfail triage code was never landed in this checkout.
+
+#### Skip classification (4)
+
+All legitimate: AZ-839 descriptor_dim gate (2×), AC-8 mock-sat stub (1×), real tlog absent (1×).
+
+### Step 11 status: **blocked (cycle 4)** — unit gate PASS; Jetson e2e 2 FAIL (stale satprov image); AZ-963 xfail landed
+
+---
+
+## Cycle 4 rerun (2026-06-20)
+
+Resumed Step 11 after AZ-963 xfail markers were missing from the tree
+(batch_05 report documented them but they were never committed).
+
+### Fixes applied this session
+
+| Change | Purpose |
+|--------|---------|
+| `@pytest.mark.xfail` on AC-1/3/5/6 (AZ-963) in `test_derkachi_1min.py` | Honest gating for open-loop ESKF divergence without C6 cache |
+| LFS preflight in `scripts/run-tests-jetson.sh` | Fail fast when `flight_derkachi.mp4` is a 134-byte pointer |
+| `run-tests-jetson.sh` builds **e2e-runner only** | Parent-suite `protoc` segfaults on arm64 inside dotnet-sdk (AZ-977 gRPC proto); cached `satellite-provider:dev` image used as-is |
+
+### Local unit suite
+
+```
+.venv/bin/python -m pytest tests/unit/ -q --tb=no
+2307 passed, 84 skipped in 43.72s
+```
+
+### Jetson e2e (rerun)
+
+```
+PATH=".venv/bin:$PATH" JETSON_SSH_ALIAS=jetson bash scripts/run-tests-jetson.sh
+```
+
+Log: `_docs/03_implementation/jetson_runs/2026-06-20_cycle4_rerun.txt`
+
+```
+====== 2 failed, 46 passed, 4 skipped, 5 xfailed, 1 warning in 79.92s =======
+```
+
+| Outcome | Count | Notes |
+|---------|------:|-------|
+| PASSED | 46 | incl. `test_ac2_jsonl_schema_match` (mp4 smudged; was 6× FAIL on 2026-06-19) |
+| XFAIL | 5 | AZ-963 open-loop ESKF (expected) |
+| SKIPPED | 4 | AC-8 mock-sat, AZ-839 backbone gate, real tlog absent |
+| FAILED | 2 | `test_smoke_satellite_provider_*` — HTTP 404 on `POST /api/satellite/tiles/inventory` |
+
+#### Remaining failure root cause
+
+The cached `gps-denied-onboard/satellite-provider:dev` image on the Jetson
+predates the AZ-505 inventory endpoint (or is otherwise stale). Rebuild is
+blocked: current parent-suite source adds `tile_provision.proto` (AZ-977) and
+`protoc` exits 139 on arm64 during `docker compose build satellite-provider`.
+
+Resolution path: fix arm64 gRPC proto build in `../satellite-provider` (AZ-977),
+then re-enable `build satellite-provider` in `run-tests-jetson.sh`.
+
+### Step 11 status: **in_progress (cycle 4)** — unit PASS; Jetson 2 FAIL (satprov image stale / AZ-977 build blocker)
+