Docs: add nav titles across docs (#5689)

docs/start/getting-started.md

@@ -3,6 +3,7 @@ summary: "Beginner guide: from zero to first message (wizard, auth, channels, pa
 read_when:
   - First time setup from zero
   - You want the fastest path from install → onboarding → first message
+title: "Getting Started"
 ---
 
 # Getting Started

docs/start/hubs.md

@@ -2,6 +2,7 @@
 summary: "Hubs that link to every OpenClaw doc"
 read_when:
   - You want a complete map of the documentation
+title: "Docs Hubs"
 ---
 
 # Docs hubs

docs/start/lore.md

@@ -2,6 +2,7 @@
 summary: "Backstory and lore of OpenClaw for context and tone"
 read_when:
   - Writing docs or UX copy that reference lore
+title: "OpenClaw Lore"
 ---
 
 # The Lore of OpenClaw 🦞📖

docs/start/onboarding.md

@@ -3,6 +3,7 @@ summary: "First-run onboarding flow for OpenClaw (macOS app)"
 read_when:
   - Designing the macOS onboarding assistant
   - Implementing auth or identity setup
+title: "Onboarding"
 ---
 
 # Onboarding (macOS app)

docs/start/openclaw.md

@@ -3,6 +3,7 @@ summary: "End-to-end guide for running OpenClaw as a personal assistant with saf
 read_when:
   - Onboarding a new assistant instance
   - Reviewing safety/permission implications
+title: "Personal Assistant Setup"
 ---
 
 # Building a personal assistant with OpenClaw

docs/start/pairing.md

@@ -4,6 +4,7 @@ read_when:
   - Setting up DM access control
   - Pairing a new iOS/Android node
   - Reviewing OpenClaw security posture
+title: "Pairing"
 ---
 
 # Pairing

docs/start/setup.md

@@ -3,6 +3,7 @@ summary: "Setup guide: keep your OpenClaw setup tailored while staying up-to-dat
 read_when:
   - Setting up a new machine
   - You want “latest + greatest” without breaking your personal setup
+title: "Setup"
 ---
 
 # Setup

docs/start/wizard.md

@@ -3,6 +3,7 @@ summary: "CLI onboarding wizard: guided setup for gateway, workspace, channels,
 read_when:
   - Running or configuring the onboarding wizard
   - Setting up a new machine
+title: "Onboarding Wizard"
 ---
 
 # Onboarding Wizard (CLI)