Initial commit: adacam-api v1.0.0

Clean Python Flask replacement for odc-api (434k lines Node.js → ~350 lines Python)
- GET /api/1/landmarks/last/{N} - last N detections from SQLite
- POST /api/1/landmarks - ingest detections + forward to AdaMaps
- GET /api/1/gnssConcise/latestValid - GPS fix from Redis
- GET /api/1/status - device status
- GET /api/1/deviceinfo - device identity
- GET /api/1/recording/frames/latest - latest frame path

No /api/1/cmd - that's the CVE, it's gone.

Includes:
- SQLite for local storage + offline queue
- Background thread for AdaMaps retry
- systemd service unit
- install.sh for device deployment

adacam_api/routes/status.py

@@ -0,0 +1,28 @@
+"""Device status and info endpoints."""
+import time
+from flask import Blueprint, jsonify
+from .. import config, redis_client
+
+bp = Blueprint("status", __name__, url_prefix="/api/1")
+
+_start_time = time.time()
+
+
+@bp.route("/status", methods=["GET"])
+def status():
+    """Device status: firmware, uptime, GPS lock, camera status."""
+    return jsonify({
+        "firmware_version": config.FIRMWARE_VERSION,
+        "uptime_seconds": int(time.time() - _start_time),
+        "gps_lock": redis_client.has_gps_lock(),
+        "camera_status": "active",  # TODO: check camera pipeline
+    })
+
+
+@bp.route("/deviceinfo", methods=["GET"])
+def deviceinfo():
+    """Device identity."""
+    return jsonify({
+        "device_id": config.get("device_id"),
+        "firmware_version": config.FIRMWARE_VERSION,
+    })