feat: Enhance MeshCoreBleService with new callbacks and message handling

- Added new callback types for path updates, message sent, message delivered, status responses, binary responses, and battery/storage information.
- Implemented handling for binary responses and path updates, including parsing and notifying via callbacks.
- Updated message sending logic to include acknowledgment and delivery confirmation.
- Enhanced log parsing for received data, including detailed interpretations and analysis.
- Introduced status request functionality to query operational status from repeater or sensor nodes.
- Updated battery and storage information handling to provide detailed metrics and trigger callbacks.
- Deprecated legacy methods in favor of more robust alternatives.

CLAUDE.md

@@ -159,6 +159,7 @@ The companion radio acts as a 'server', responding to requests from the connecte
 | 0x85 | PUSH_CODE_LOGIN_SUCCESS | Login response successful |
 | 0x86 | PUSH_CODE_LOGIN_FAIL | Login response failed |
 | 0x87 | PUSH_CODE_STATUS_RESPONSE | Status response received |
+| 0x88 | PUSH_CODE_LOG_RX_DATA | Debug: raw over-the-air packet received (diagnostic) |
 | 0x89 | PUSH_CODE_TRACE_DATA | TRACE packet reached end of path |
 | 0x8A | PUSH_CODE_NEW_ADVERT | New contact advert (manual_add_contacts=1) |
 | 0x8B | PUSH_CODE_TELEMETRY_RESPONSE | Telemetry response received |
@@ -368,11 +369,14 @@ The companion radio acts as a 'server', responding to requests from the connecte
 [0x07] - Response code (7)
 [6 bytes] - Sender public key prefix (first 6 bytes)
 [1 byte] - Path length (0xFF if direct, else hop count for flood-mode)
-[1 byte] - Text type (TXT_TYPE_*, 0=plain)
+[1 byte] - Text type (TXT_TYPE_*, 0=plain, 2=signed)
 [4 bytes] - Sender timestamp (uint32)
+[4 bytes] - (Only if text type = 2) Extra sender prefix bytes for verification
 [N bytes] - Text (remainder of frame, varchar)
 ```
 
+**Note on TXT_TYPE_SIGNED_PLAIN (2)**: Despite the name "signed", this doesn't contain a cryptographic signature. It includes 4 extra bytes of the sender's public key prefix (bytes 6-9) for additional verification. The text follows immediately after these 4 bytes.
+
 **RESP_CODE_CHANNEL_MSG_RECV (8)**:
 ```
 [0x08] - Response code (8)
@@ -444,9 +448,11 @@ The companion radio acts as a 'server', responding to requests from the connecte
 ```
 [0x1A] - Command code (26)
 [32 bytes] - Public key (repeater or room server)
-[N bytes] - Password (remainder of frame, varchar, max 15 bytes)
+[N bytes] - Password (remainder of frame, varchar, max 15 bytes, null-terminated)
 ```
 
+**NOTE**: The companion radio's `sendLogin()` function internally generates the `sender_timestamp` and `sync_since` parameters when creating the over-the-air packet. The BLE protocol does NOT accept these parameters.
+
 **PUSH_CODE_LOGIN_SUCCESS (0x85)**:
 ```
 [0x85] - Push code
@@ -521,6 +527,25 @@ The companion radio acts as a 'server', responding to requests from the connecte
 [N+1 bytes] - Path SNRs (last byte = SNR for last hop, each byte = SNR * 4)
 ```
 
+**PUSH_CODE_LOG_RX_DATA (0x88)** *(Diagnostic/Debug Feature)*:
+```
+[0x88] - Push code
+[1 byte] - SNR × 4 (signed int8, divide by 4 to get SNR in dB)
+[1 byte] - RSSI (signed int8, in dBm)
+[N bytes] - Raw over-the-air packet data (encrypted LoRa packet from mesh network)
+```
+
+**Purpose**: This is a diagnostic push notification that forwards ALL over-the-air packets received by the companion radio to the app, allowing network debugging and signal quality monitoring.
+
+**Implementation**: Based on `MyMesh::logRxRaw()` in MeshCore C++ source (MyMesh.cpp lines 237-248).
+
+**Usage**:
+- Monitor mesh network activity in real-time
+- Analyze signal quality (SNR/RSSI) for received packets
+- Debug packet reception issues
+- The raw packet data is typically encrypted (high entropy ~95%+)
+- Not part of official protocol documentation (debug feature)
+
 **CMD_SET_DEVICE_PIN (37)**:
 ```
 [0x25] - Command code (37)