[AZ-455] [autodev] Add Blackbox Tests component to module-layout

Adds a cross-cutting "Blackbox Tests" entry to
_docs/02_document/module-layout.md so the implement skill's Step 4
(file ownership) can resolve OWNED / READ-ONLY / FORBIDDEN globs for
every AZ-455 test task (AZ-456..AZ-482). Owns: tests/**, e2e/**,
**/*.{test,spec}.{ts,tsx}, vitest.config.ts, test sections of
package.json, scripts/run-tests.sh + run-performance-tests.sh
(extension only). Imports from src/types/index.ts only (P9 black-box
discipline). Advances Step 6 sub_step to phase 1 (parse).

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

_docs/_autodev_state.md

@@ -4,13 +4,14 @@
 flow: existing-code
 step: 6
 name: Implement Tests
-status: not_started
+status: in_progress
 sub_step:
-  phase: 0
-  name: awaiting-invocation
+  phase: 1
+  name: parse
   detail: ""
 retry_count: 0
 cycle: 1
+tracker: jira
 step_4_5_glossary_vision: confirmed
 step_2_baseline_routing: per-finding-recommended (option A)
 step_3_results_report_authoring: agent (option A)
@@ -25,3 +26,7 @@ step_3_ac_gap_handling: rollback-to-6c (option A)
 - Legacy reference: `_docs/legacy/wpf-era.md` + research copy at
   `suite/annotations-research` (detached @ `22529c2`).
 - /document scope was src/ AND mission-planner/ (two disjoint groups).
+- 2026-05-11 Step 6 entry: added "Blackbox Tests" cross-cutting
+  component to `_docs/02_document/module-layout.md` so the implement
+  skill's Step 4 (file ownership) can resolve test-task ownership
+  for AZ-456..AZ-482 (epic AZ-455).