docs: normalize frontmatter titles to sentence case

docs/platforms/mac/child-process.md

@@ -2,7 +2,7 @@
 summary: "Gateway lifecycle on macOS (launchd)"
 read_when:
   - Integrating the mac app with the gateway lifecycle
-title: "Gateway Lifecycle"
+title: "Gateway lifecycle"
 ---
 
 # Gateway lifecycle on macOS

docs/platforms/mac/dev-setup.md

@@ -2,7 +2,7 @@
 summary: "Setup guide for developers working on the OpenClaw macOS app"
 read_when:
   - Setting up the macOS development environment
-title: "macOS Dev Setup"
+title: "macOS dev setup"
 ---
 
 # macOS Developer Setup

docs/platforms/mac/health.md

@@ -2,7 +2,7 @@
 summary: "How the macOS app reports gateway/Baileys health states"
 read_when:
   - Debugging mac app health indicators
-title: "Health Checks (macOS)"
+title: "Health checks (macOS)"
 ---
 
 # Health Checks on macOS

docs/platforms/mac/icon.md

@@ -2,7 +2,7 @@
 summary: "Menu bar icon states and animations for OpenClaw on macOS"
 read_when:
   - Changing menu bar icon behavior
-title: "Menu Bar Icon"
+title: "Menu bar icon"
 ---
 
 # Menu Bar Icon States

docs/platforms/mac/logging.md

@@ -3,7 +3,7 @@ summary: "OpenClaw logging: rolling diagnostics file log + unified log privacy f
 read_when:
   - Capturing macOS logs or investigating private data logging
   - Debugging voice wake/session lifecycle issues
-title: "macOS Logging"
+title: "macOS logging"
 ---
 
 # Logging (macOS)

docs/platforms/mac/menu-bar.md

@@ -2,7 +2,7 @@
 summary: "Menu bar status logic and what is surfaced to users"
 read_when:
   - Tweaking mac menu UI or status logic
-title: "Menu Bar"
+title: "Menu bar"
 ---
 
 # Menu Bar Status Logic

docs/platforms/mac/peekaboo.md

@@ -4,7 +4,7 @@ read_when:
   - Hosting PeekabooBridge in OpenClaw.app
   - Integrating Peekaboo via Swift Package Manager
   - Changing PeekabooBridge protocol/paths
-title: "Peekaboo Bridge"
+title: "Peekaboo bridge"
 ---
 
 # Peekaboo Bridge (macOS UI automation)

docs/platforms/mac/permissions.md

@@ -4,7 +4,7 @@ read_when:
   - Debugging missing or stuck macOS permission prompts
   - Packaging or signing the macOS app
   - Changing bundle IDs or app install paths
-title: "macOS Permissions"
+title: "macOS permissions"
 ---
 
 # macOS permissions (TCC)

docs/platforms/mac/signing.md

@@ -2,7 +2,7 @@
 summary: "Signing steps for macOS debug builds generated by packaging scripts"
 read_when:
   - Building or signing mac debug builds
-title: "macOS Signing"
+title: "macOS signing"
 ---
 
 # mac signing (debug builds)

docs/platforms/mac/voice-overlay.md

@@ -2,7 +2,7 @@
 summary: "Voice overlay lifecycle when wake-word and push-to-talk overlap"
 read_when:
   - Adjusting voice overlay behavior
-title: "Voice Overlay"
+title: "Voice overlay"
 ---
 
 # Voice Overlay Lifecycle (macOS)

docs/platforms/mac/voicewake.md

@@ -2,7 +2,7 @@
 summary: "Voice wake and push-to-talk modes plus routing details in the mac app"
 read_when:
   - Working on voice wake or PTT pathways
-title: "Voice Wake (macOS)"
+title: "Voice wake (macOS)"
 ---
 
 # Voice Wake & Push-to-Talk