feat: expand companion platform, device controls, and memoir workflows

Add customer and operator login, BLE provisioning, device fleet controls, call memory, memoir generation, and refreshed family and maintenance portals. Include API contracts, migrations, firmware sources, tests, assets, and deployment documentation.

firmware/echoear-platform-agent/tools/monitor_provisioning.py

@@ -0,0 +1,40 @@
+"""Read provisioning diagnostics without resetting the device by default."""
+import argparse
+import time
+import serial
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--port", default="COM6")
+parser.add_argument("--seconds", type=int, default=45)
+parser.add_argument("--reset", action="store_true")
+args = parser.parse_args()
+
+port = serial.Serial()
+port.port = args.port
+port.baudrate = 115200
+port.timeout = 1
+port.dtr = False
+port.rts = False
+port.open()
+try:
+    if args.reset:
+        from esptool.reset import HardReset
+        HardReset(port, uses_usb=True)()
+    deadline = time.monotonic() + args.seconds
+    resets = 0
+    print(f"Monitoring {args.port} for {args.seconds}s; reset={args.reset}", flush=True)
+    markers = ("ble_setup:", "ble_wifi:", "Guru Meditation", "assert failed:",
+               "panic", "rst:", "Rebooting", "Touch released", "Startup task finished",
+               "ELF file SHA256:", "wifi:Expected", "wifi_init: Failed", "esp_netif_lwip:",
+               "esp-tls:", "HTTP_CLIENT:", "Stack protection fault",
+               "PLATFORM_HTTP", "Platform error code:", "call_client:", "Startup stack headroom",
+               "WiFi init internal_free", "WiFi initialization unavailable", "RTC", "volc_rtc_create:")
+    while time.monotonic() < deadline:
+        line = port.readline().decode(errors="replace").strip()
+        if "rst:" in line:
+            resets += 1
+        if line and any(marker in line for marker in markers):
+            print(line, flush=True)
+    print(f"Reset markers observed: {resets}", flush=True)
+finally:
+    port.close()