[AZ-640] Bootstrap Rust workspace, CI/Docker, observability scaffold

Lands the first task of the implementation epic AZ-626: a cargo workspace
with 14 crates (shared + autopilot binary + 12 component crates), a
multi-stage Dockerfile + dev/test compose stacks, a Woodpecker CI pipeline,
the on-airframe systemd unit with flight-gate wiring, three environment
TOML configs, and the canonical entity catalogue from data_model.md as
`shared::models`.

Per-AC verification (full detail in
_docs/03_implementation/batch_01_cycle1_report.md):

- AC-1 cargo check --workspace clean
- AC-2 cargo test --workspace passes; per-crate it_compiles() <0.01 s
- AC-6 cargo build/test --no-default-features clean; VlmClient default
       impl returns VlmAssessment::disabled()
- AC-9 tracing-subscriber emits JSON logs with ts/level/target/fields
- AC-10 runtime::ensure_state_directories creates mapobjects/, audit/,
        pending_pushes/ under storage.state_dir

Deferred to external infra (artifacts written, verification re-runs in CI
and in downstream tasks):
- AC-3 Woodpecker runner; CI yml in place
- AC-4 docker-compose mocks land with AZ-660/AZ-644/AZ-675
- AC-5 SITL conformance lands with AZ-641/AZ-648/AZ-652
- AC-7 aarch64 cross-compile via cargo-zigbuild stage
- AC-8 systemd unit (Linux + systemd host)

Layering invariants from module-layout.md hold: shared (L1) imports
nothing; Layer 2 actor crates import only shared; Layer 3 coordinators
(operator_bridge, mission_executor) import only their documented Layer 2
deps; Layer 4 (scan_controller) imports its documented Layer 2 + Layer 3
deps; the autopilot binary (L5) is the only consumer of every component.

cargo fmt --all --check + cargo clippy --all-targets -- -D warnings both
clean. Jira AZ-640 transitioned to In Progress at the start of this batch;
the matching In Testing transition follows this commit.

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

deploy/systemd/autopilot.service

@@ -0,0 +1,40 @@
+[Unit]
+Description=AZAION autopilot — onboard mission executor
+Documentation=https://github.com/azaion/autopilot
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=notify
+User=autopilot
+Group=autopilot
+
+ExecStartPre=/bin/sh -c 'mkdir -p /run/azaion && touch /run/azaion/in-flight'
+ExecStart=/usr/local/bin/autopilot
+ExecStopPost=/bin/rm -f /run/azaion/in-flight
+
+EnvironmentFile=-/etc/azaion/autopilot/secrets.env
+Environment=AUTOPILOT_CONFIG=/etc/azaion/autopilot/config.toml
+Environment=RUST_LOG=info
+Environment=AUTOPILOT_HEALTH_BIND=127.0.0.1:8080
+
+# Bounded restart (per containerization.md §3).
+Restart=on-failure
+RestartSec=2s
+StartLimitBurst=5
+
+# Resource limits — on-airframe memory budget leaves room for the Tier-1 YOLO
+# container (~2 GB) and other airframe services on the 8 GB Jetson.
+MemoryMax=6G
+LimitNOFILE=65536
+LimitNPROC=4096
+
+# Hardening
+NoNewPrivileges=true
+ProtectSystem=full
+ProtectHome=true
+PrivateTmp=true
+ReadWritePaths=/var/lib/autopilot /run/azaion
+
+[Install]
+WantedBy=multi-user.target