docs: add missing frontmatter and title fields

- Add full frontmatter (title, summary, read_when) to 4 files that
  had none: auth-credential-semantics.md, kilo-gateway-integration.md,
  CONTRIBUTING-THREAT-MODEL.md, THREAT-MODEL-ATLAS.md
- Add missing title field to 3 provider docs: kilocode.md, litellm.md,
  together.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/auth-credential-semantics.md

@@ -1,3 +1,11 @@
+---
+title: "Auth Credential Semantics"
+summary: "Canonical credential eligibility and resolution semantics for auth profiles"
+read_when:
+  - Working on auth profile resolution or credential routing
+  - Debugging model auth failures or profile order
+---
+
 # Auth Credential Semantics
 
 This document defines the canonical credential eligibility and resolution semantics used across:

docs/design/kilo-gateway-integration.md

@@ -1,3 +1,11 @@
+---
+title: "Kilo Gateway Integration Design"
+summary: "Design doc for integrating Kilo Gateway as a first-class OpenClaw provider"
+read_when:
+  - Working on the Kilo Gateway provider integration
+  - Understanding provider integration patterns
+---
+
 # Kilo Gateway Provider Integration Design
 
 ## Overview

docs/providers/kilocode.md

@@ -1,4 +1,5 @@
 ---
+title: "Kilo Gateway"
 summary: "Use Kilo Gateway's unified API to access many models in OpenClaw"
 read_when:
   - You want a single API key for many LLMs

docs/providers/litellm.md

@@ -1,4 +1,5 @@
 ---
+title: "LiteLLM"
 summary: "Run OpenClaw through LiteLLM Proxy for unified model access and cost tracking"
 read_when:
   - You want to route OpenClaw through a LiteLLM proxy

docs/providers/together.md

@@ -1,4 +1,5 @@
 ---
+title: "Together AI"
 summary: "Together AI setup (auth + model selection)"
 read_when:
   - You want to use Together AI with OpenClaw

docs/security/CONTRIBUTING-THREAT-MODEL.md

@@ -1,3 +1,11 @@
+---
+title: "Contributing to the Threat Model"
+summary: "How to contribute to the OpenClaw threat model"
+read_when:
+  - You want to contribute security findings or threat scenarios
+  - Reviewing or updating the threat model
+---
+
 # Contributing to the OpenClaw Threat Model
 
 Thanks for helping make OpenClaw more secure. This threat model is a living document and we welcome contributions from anyone - you don't need to be a security expert.

docs/security/THREAT-MODEL-ATLAS.md

@@ -1,3 +1,11 @@
+---
+title: "Threat Model (MITRE ATLAS)"
+summary: "OpenClaw threat model mapped to the MITRE ATLAS framework"
+read_when:
+  - Reviewing security posture or threat scenarios
+  - Working on security features or audit responses
+---
+
 # OpenClaw Threat Model v1.0
 
 ## MITRE ATLAS Framework