[AZ-662] [AZ-669] Archive batch 19; defer test gate

Batch 19 (movement_detector ego-motion + semantic_analyzer primitive
graph) is committed at db844db. This archival commit:

- Writes _docs/03_implementation/batch_19_cycle1_report.md with a
  lightweight inline code review (PASS_WITH_WARNINGS; 5 low/medium
  findings — see F1-F5 in the report).
- Transitions AZ-662 and AZ-669 In Progress -> In Testing in Jira
  (transition id 32 -> status id 10036) per implement/SKILL.md Step 12.
- Logs _docs/_process_leftovers/2026-05-20_batch19_opencv_test_gate.md
  explaining why `cargo test --workspace` could not be run this session
  (macOS dev box has no native OpenCV; brew install failed with ENOSPC;
  Jetson host is the CI infra box, not a dev sandbox). Replay options
  documented in the leftover.
- Updates _docs/_autodev_state.md sub_step to between-batches-blocked:
  batch 20 selection MUST NOT auto-chain until the test gate is closed.

Cargo.lock picks up the `bytes` dev-dep entries for movement_detector
and semantic_analyzer (mechanical lockfile sync; no version bumps).

Co-authored-by: Cursor <cursoragent@cursor.com>

_docs/_autodev_state.md

@@ -4,25 +4,27 @@
 flow: greenfield
 step: 7
 name: Implement
-status: between-batches
-sub_step: batch-20-select
+status: in_progress
+sub_step:
+  phase: 13
+  name: between-batches-blocked
+  detail: "batch-19 test gate deferred (leftover); batch-20 selection blocked until OpenCV-installable env"
 retry_count: 0
 cycle: 1
 tracker: jira
 
 ## Last Completed Batch
 batch: 19
+commit: db844db
 ticket: AZ-662, AZ-669
-jira_status: In Progress (set at batch start; transition to In Testing after Jetson test run)
-notes: >
-  opencv + petgraph added to workspace; movement_detector ego-motion (optical_flow, ego_motion
-  modules) and semantic_analyzer primitive-graph + freshness-scorer implemented. Local cargo check
-  blocked by missing native OpenCV on macOS; authoritative test is `cargo test --workspace` on
-  the Jetson (ssh jetson-e2e).
+jira_status: In Testing (transitioned 2026-05-20 — id 10036)
+report: _docs/03_implementation/batch_19_cycle1_report.md (PASS_WITH_WARNINGS — see report for F1-F5)
+test_gate: DEFERRED — see _docs/_process_leftovers/2026-05-20_batch19_opencv_test_gate.md
 
 ## Process Leftovers
 - `_docs/_process_leftovers/2026-05-20_autopilot_clippy.md` — still pending; out-of-scope for batch 18
 - `_docs/_process_leftovers/2026-05-20_mission_executor_ac3_flake.md` — still pending; fix when next mission_executor batch lands
+- `_docs/_process_leftovers/2026-05-20_batch19_opencv_test_gate.md` — BLOCKS batch 20; resolve by installing native OpenCV locally or wiring Woodpecker CI on Jetson
 
 ## Cumulative Review Cadence
 Last cumulative: batches 16–18. Next due: end of batch 21 (or sooner if a large-scope batch warrants it).