Fix some doc gaps

AGENTS.md

@@ -240,6 +240,7 @@ Key test files:
 - `tests/test_ack_tracking_wiring.py` - DM ACK tracking extraction and wiring
 - `tests/test_health_mqtt_status.py` - Health endpoint MQTT status field
 - `tests/test_community_mqtt.py` - Community MQTT publisher (JWT, packet format, hash, broadcast)
+- `tests/test_real_crypto.py` - Real cryptographic operations
 
 ### Frontend (Vitest)
 

README.md

@@ -8,7 +8,7 @@ Backend server + browser interface for MeshCore mesh radio networks. Connect you
 * Monitor unlimited contacts and channels (radio limits don't apply -- packets are decrypted server-side)
 * Access your radio remotely over your network or VPN
 * Search for hashtag room names for channels you don't have keys for yet
-* Forward decrypted packets to MQTT brokers (both private and community aggregators like LetsMesh.net)
+* Forward packets to MQTT brokers (private: decrypted messages and/or raw packets; community aggregators like LetsMesh.net: raw packets only)
 * Visualize the mesh as a map or node set, view repeater stats, and more!
 
 **Warning:** This app has no auth, and is for trusted environments only. _Do not put this on an untrusted network, or open it to the public._ The bots can execute arbitrary Python code which means anyone on your network can, too. If you need access control, consider using a reverse proxy like Nginx, or extending FastAPI; access control and user management are outside the scope of this app.

app/AGENTS.md

@@ -63,7 +63,7 @@ app/
 2. Message is persisted as outgoing.
 3. Endpoint broadcasts WS `message` event so all live clients update.
 4. ACK/repeat updates arrive later as `message_acked` events.
-5. Channel resend (`POST /messages/channel/{id}/resend`) strips the sender name prefix by exact match against the current radio name. This assumes the radio name hasn't changed between the original send and the resend — a safe assumption since name changes require a radio config update and are not something that happens mid-conversation.
+5. Channel resend (`POST /messages/channel/{id}/resend`) strips the sender name prefix by exact match against the current radio name. This assumes the radio name hasn't changed between the original send and the resend. Name changes require an explicit radio config update and are rare, but the `new_timestamp=true` resend path has no time window, so a mismatch is possible if the name was changed between the original send and a later resend.
 
 ### Connection lifecycle
 
@@ -283,6 +283,7 @@ tests/
 ├── test_packet_pipeline.py     # End-to-end packet processing
 ├── test_packets_router.py      # Packets router endpoints (decrypt, maintenance)
 ├── test_radio.py               # RadioManager, serial detection
+├── test_real_crypto.py         # Real cryptographic operations
 ├── test_radio_operation.py     # radio_operation() context manager
 ├── test_radio_router.py        # Radio router endpoints
 ├── test_radio_sync.py          # Polling, sync, advertisement

app/models.py

@@ -6,7 +6,7 @@ from pydantic import BaseModel, Field
 class Contact(BaseModel):
     public_key: str = Field(description="Public key (64-char hex)")
     name: str | None = None
-    type: int = 0  # 0=unknown, 1=client, 2=repeater, 3=room
+    type: int = 0  # 0=unknown, 1=client, 2=repeater, 3=room, 4=sensor
     flags: int = 0
     last_path: str | None = None
     last_path_len: int = -1

frontend/AGENTS.md

@@ -48,6 +48,8 @@ frontend/src/
 │   ├── contactAvatar.ts        # Avatar color derivation from public key
 │   ├── rawPacketIdentity.ts    # observation_id vs id dedup helpers
 │   ├── visualizerUtils.ts      # 3D visualizer node types, colors, particles
+│   ├── visualizerSettings.ts   # LocalStorage persistence for visualizer options
+│   ├── a11y.ts                 # Keyboard accessibility helper
 │   ├── lastViewedConversation.ts   # localStorage for last-viewed conversation
 │   ├── contactMerge.ts            # Merge WS contact updates into list
 │   ├── localLabel.ts              # Local label (text + color) in localStorage
@@ -69,6 +71,7 @@ frontend/src/
 │   ├── BotCodeEditor.tsx
 │   ├── ContactAvatar.tsx
 │   ├── ContactInfoPane.tsx     # Contact detail sheet (stats, name history, paths)
+│   ├── ContactStatusInfo.tsx   # Contact status info component
 │   ├── RepeaterDashboard.tsx   # Layout shell — delegates to repeater/ panes
 │   ├── RepeaterLogin.tsx       # Repeater login form (password + guest)
 │   ├── NeighborsMiniMap.tsx    # Leaflet mini-map for repeater neighbor locations
@@ -94,7 +97,8 @@ frontend/src/
 │   │   └── RepeaterConsolePane.tsx      # CLI console with history
 │   └── ui/                     # shadcn/ui primitives
 ├── types/
-│   └── d3-force-3d.d.ts       # Type declarations for d3-force-3d
+│   ├── d3-force-3d.d.ts       # Type declarations for d3-force-3d
+│   └── globals.d.ts           # Global type declarations (__APP_VERSION__, __COMMIT_HASH__)
 └── test/
     ├── setup.ts
     ├── fixtures/websocket_events.json
@@ -114,6 +118,8 @@ frontend/src/
     ├── repeaterLogin.test.tsx
     ├── repeaterMessageParsing.test.ts
     ├── localLabel.test.ts
+    ├── messageInput.test.tsx
+    ├── newMessageModal.test.tsx
     ├── settingsModal.test.tsx
     ├── sidebar.test.tsx
     ├── unreadCounts.test.ts
@@ -121,6 +127,7 @@ frontend/src/
     ├── useConversationMessages.test.ts
     ├── useConversationMessages.race.test.ts
     ├── useRepeaterDashboard.test.ts
+    ├── useContactsAndChannels.test.ts
     ├── useWebSocket.dispatch.test.ts
     └── useWebSocket.lifecycle.test.ts
 ```
@@ -146,7 +153,7 @@ frontend/src/
 
 ### New Message modal
 
-`NewMessageModal` intentionally preserves form state (tab, inputs, checkboxes) when closed and reopened. The component instance persists across open/close cycles. This is by design so users don't lose in-progress input if they accidentally dismiss the dialog.
+`NewMessageModal` resets form state on close. The component instance persists across open/close cycles for smooth animations.
 
 ### Message behavior