docs: normalize frontmatter titles to sentence case

docs/nodes/audio.md

@@ -2,7 +2,7 @@
 summary: "How inbound audio/voice notes are downloaded, transcribed, and injected into replies"
 read_when:
   - Changing audio transcription or media handling
-title: "Audio and Voice Notes"
+title: "Audio and voice notes"
 ---
 
 # Audio / Voice Notes (2026-01-17)

docs/nodes/camera.md

@@ -3,7 +3,7 @@ summary: "Camera capture (iOS/Android nodes + macOS app) for agent use: photos (
 read_when:
   - Adding or modifying camera capture on iOS/Android nodes or macOS
   - Extending agent-accessible MEDIA temp-file workflows
-title: "Camera Capture"
+title: "Camera capture"
 ---
 
 # Camera capture (agent)

docs/nodes/images.md

@@ -2,7 +2,7 @@
 summary: "Image and media handling rules for send, gateway, and agent replies"
 read_when:
   - Modifying media pipeline or attachments
-title: "Image and Media Support"
+title: "Image and media support"
 ---
 
 # Image & Media Support (2025-12-05)

docs/nodes/location-command.md

@@ -3,7 +3,7 @@ summary: "Location command for nodes (location.get), permission modes, and Andro
 read_when:
   - Adding location node support or permissions UI
   - Designing Android location permissions or foreground behavior
-title: "Location Command"
+title: "Location command"
 ---
 
 # Location command (nodes)

docs/nodes/media-understanding.md

@@ -3,7 +3,7 @@ summary: "Inbound image/audio/video understanding (optional) with provider + CLI
 read_when:
   - Designing or refactoring media understanding
   - Tuning inbound audio/video/image preprocessing
-title: "Media Understanding"
+title: "Media understanding"
 ---
 
 # Media Understanding - Inbound (2026-01-17)

docs/nodes/talk.md

@@ -3,7 +3,7 @@ summary: "Talk mode: continuous speech conversations with ElevenLabs TTS"
 read_when:
   - Implementing Talk mode on macOS/iOS/Android
   - Changing voice/TTS/interrupt behavior
-title: "Talk Mode"
+title: "Talk mode"
 ---
 
 Talk mode is a continuous voice conversation loop:

docs/nodes/troubleshooting.md

@@ -3,7 +3,7 @@ summary: "Troubleshoot node pairing, foreground requirements, permissions, and t
 read_when:
   - Node is connected but camera/canvas/screen/exec tools fail
   - You need the node pairing versus approvals mental model
-title: "Node Troubleshooting"
+title: "Node troubleshooting"
 ---
 
 Use this page when a node is visible in status but node tools fail.

docs/nodes/voicewake.md

@@ -3,7 +3,7 @@ summary: "Global voice wake words (Gateway-owned) and how they sync across nodes
 read_when:
   - Changing voice wake words behavior or defaults
   - Adding new node platforms that need wake word sync
-title: "Voice Wake"
+title: "Voice wake"
 ---
 
 # Voice Wake (Global Wake Words)