[AZ-407] [AZ-444] [AZ-445] Batch 68: fixtures, Tier-2 harness, NFR reporter

Three blackbox-harness tasks landed together — all depend only on
AZ-406 and unblock the FT-* / NFT-* scenario tasks scheduled for
batches 69+.

AZ-407 — Static fixture builders (3pt):
  * tile-cache-builder/{builder.py, Dockerfile, build.sh} produces a
    deterministic tile-cache-fixture Docker volume from
    _docs/00_problem/input_data/. Reproducibility primitives: sorted
    iteration, frozen PIL JPEG settings, FAISS HNSW32 built single-
    threaded with seeded stub descriptors.
  * age-injector/{age_injector.py, inject.sh} clones the volume and
    shifts capture_date by N×30.44 days; tile JPEG bytes preserved
    bit-identical. Emits synth-age-7mo + synth-age-13mo volumes.
  * cold-boot/cold_boot_fixture.json: frozen FC pose snapshot at
    Derkachi sector centre, schema v1.
  * secrets/mavlink-test-passkey.txt: 64-hex with required
    `# TEST ONLY` header line per AC-5. Passkey-equality test now
    compares the secret line after stripping the header.
  * security/cve-2025-53644.jpg: synthetic 158-byte malformed JPEG
    (truncated SOS marker). OpenCV 4.11.x rejects gracefully with
    imdecode → None. AZ-439 will sharpen for ASan instrumentation.
  * Top-level Makefile with `make fixtures` / `make fixtures-*` /
    `make e2e-tier1*` / `make unit-tests` targets.

AZ-444 — Tier-2 Jetson harness wrapper (5pt):
  * run-tier2.sh rewritten as orchestrator. Detects local
    (aarch64 + TIER2_HOST=localhost) vs remote (ssh into TIER2_HOST).
    New flags: -k/--selector, --build-kind production|asan,
    --reflash (gated behind TIER2_REFLASH_ACK=1 two-key gate),
    --dry-run.
  * tier2-on-jetson.sh (new) — on-device delegate. Verifies
    gps-denied-onboard{,-asan}.service health; restarts with 5s
    tolerance; spawns tegrastats + jtop parallel samplers; tails
    ASan unit's journal in asan mode; drives docker compose with
    TIER=tier2-jetson; forwards SELECTOR to pytest -k.
  * docker/run-tier1.sh (new) — selector-parity sibling.
  * AC-1 (selector parity) and AC-6 (reflash gating) unit-tested via
    --dry-run output assertions. AC-2/AC-3/AC-4/AC-5 are hardware-
    loop ACs verified by the Tier-2 runtime smoke (no Jetson in the
    unit-test layer).

AZ-445 — CSV reporter + evidence bundler refinements (2pt):
  * reporting/nfr_recorder.py (new) — pytest plugin. Provides the
    `nfr_recorder` fixture with record_metric(name, value, ac_id)
    and partial(ac_id, reason). At session end emits:
      - per-nfr/<scenario_id>.json (AC-1)
      - traceability-status.json with every AC ID parsed from
        traceability-matrix.md, classified Covered/PARTIAL/NOT
        COVERED with source scenario IDs (AC-2)
      - regression-baseline.json with all numeric metrics (AC-3)
  * csv_reporter.py extended — `_outcome_to_result` consults the
    aggregator; rows flip PASS → PARTIAL when an AC was marked
    PARTIAL by nfr_recorder (AC-4). Graceful fallback when
    aggregator isn't registered (unit-test contexts).
  * conftest.py registers nfr_recorder in pytest_plugins.
  * New --traceability-matrix CLI flag seeds the NOT COVERED rows.

Build / config:
  * pyproject.toml dev extras: added Pillow>=10.4,<13.0 for the
    tile-cache-builder unit test (broad enough to keep torchvision's
    Pillow 12 pin happy; the production builder runs inside its own
    Docker image with its own pin).
  * Updated test_directory_layout.py to cover 10 new files + replaced
    the byte-equal passkey assertion with the header-stripping
    variant.

Test results:
  * 157 focused tests pass (was 97 in batch 67; +60 new across this
    batch). No regressions.

Module-layout / spec drift:
  * AZ-407 spec text says `tests/fixtures/...`; module-layout
    blackbox_tests entry (commit d7a17a8) authoritatively places the
    harness under `e2e/`. Implementation followed the layout entry.
  * AZ-444 spec mentions `e2e/tier2/run-tier2.sh`; AZ-406 placed it
    at `e2e/jetson/run-tier2.sh`. Kept at `e2e/jetson/` for
    consistency.
  * Cold-boot README ownership: corrected from AZ-419 to AZ-407 per
    AZ-419's own Dependencies field.

Specs archived to _docs/02_tasks/done/. Jira tickets transitioned to
In Testing on commit.

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

_docs/02_tasks/done/AZ-444_tier2_jetson_harness.md

@@ -0,0 +1,78 @@
+# Tier-2 Jetson harness wrapper
+
+**Task**: AZ-444_tier2_jetson_harness
+**Name**: Tier-2 hardware-loop runner — `run-tier2.sh`, ssh provisioning, systemd service install, ASan-fuzz mode, image-flash automation
+**Description**: Implement the Tier-2 hardware-loop wrapper that AZ-406 stubs out — actual ssh-based runner, systemd service install for SUT on Jetson, `tegrastats` capture, ASan-fuzz launch path.
+**Complexity**: 5 points
+**Dependencies**: AZ-406
+**Component**: Blackbox Tests / Tier-2 runner (epic AZ-262)
+**Tracker**: AZ-444
+**Epic**: AZ-262 (E-BBT)
+
+## Problem
+
+AZ-406 scaffolds Tier-2 (`run-tier2.sh` exists as a stub); but the actual hardware-loop semantics — ssh provisioning, image-flash automation, systemd service-life management, telemetry capture, ASan-fuzz launch — are non-trivial and need a dedicated task.
+
+## Outcome
+
+- `e2e/tier2/run-tier2.sh` accepts the same `pytest -k <selector>` selector as Tier-1 and runs the selector against a configured Jetson host (env var `TIER2_HOST`).
+- Provisioning: ssh-based; runs `apt update && apt install -y ...` for runner deps if not already present (idempotent).
+- SUT lifecycle: installs the SUT as a systemd service (`gps-denied-onboard.service`); restart command is `systemctl restart gps-denied-onboard`.
+- Telemetry capture: `tegrastats` runs as a parallel ssh stream during each test; output piped into the per-run evidence bundle.
+- ASan-fuzz: separate `--build-kind asan` mode that flashes the ASan image (or builds it remotely) and runs the fuzz binary with stderr captured.
+- Image-flash automation: `--reflash` flag (gated, OFF by default) re-flashes the Jetson via `nvidia-sdkmanager-cli` when needed.
+
+## Scope
+
+### Included
+- `run-tier2.sh` runner.
+- ssh-based provisioning + systemd install/restart.
+- `tegrastats` parallel capture.
+- ASan-fuzz launch.
+- Image-flash automation (gated).
+
+### Excluded
+- The CSV reporter — owned by AZ-406.
+- Per-scenario test logic — owned by individual scenario tasks.
+- Chamber automation for +50 °C — out of scope.
+
+## Acceptance Criteria
+
+**AC-1: selector parity**
+Given the same `pytest -k <selector>` invocation
+Then both `run-tier1.sh` and `run-tier2.sh` accept it; the resulting test selection on Tier-2 is the same as Tier-1 (modulo `tier == tier2-jetson` skip rules).
+
+**AC-2: idempotent provisioning**
+Given the Jetson host has the runner deps already installed
+When `run-tier2.sh` runs
+Then provisioning is a no-op (idempotent).
+
+**AC-3: systemd lifecycle**
+Given a Tier-2 test triggers `restart`
+Then `systemctl restart gps-denied-onboard` is issued; the SUT process restarts within ≤5 s.
+
+**AC-4: tegrastats parallel capture**
+Given any Tier-2 test
+Then `tegrastats` runs as a parallel ssh stream during the test; its output lands in `e2e-results/run-${RUN_ID}/tegrastats-${tier2-host}-${test_id}.log`.
+
+**AC-5: ASan-fuzz mode**
+Given `--build-kind asan` flag
+Then the runner ensures the ASan SUT image is installed; the fuzz binary is launched; stderr is captured into `e2e-results/run-${RUN_ID}/asan-fuzz-${test_id}.log`.
+
+**AC-6: image-flash gating**
+Given the `--reflash` flag is OFF (default)
+Then image-flash is NOT triggered; the runner errors out with a clear message if the on-Jetson SUT version does not match the test selection's expected version.
+
+## System Under Test Boundary
+
+This task IS infrastructure — no SUT logic is exercised by it. The Tier-2 harness only orchestrates SUT lifecycle on real hardware.
+
+## Constraints
+
+- ssh-based: requires `TIER2_HOST` + `TIER2_USER` + `TIER2_KEY_PATH` env vars; fails fast if any are missing.
+- The reflash path uses NVIDIA's `sdkmanager-cli` and is environment-specific; it is gated OFF by default to prevent accidental hardware re-provisioning during routine CI.
+
+## Document Dependencies
+
+- `_docs/02_document/tests/environment.md` § Tier-2 (Jetson hardware loop)
+- `_docs/02_document/tests/test-data.md` § Tier-2-only fixtures (none beyond shared)