docs: add goclaw-source metadata and badge styles to EN pages (#21)

Add goclaw-source HTML comment with commit SHA and update date to all
EN doc pages. Add CSS styles for the source metadata badge.

Author: thieung

advanced/api-keys-rbac.md

@@ -225,6 +225,8 @@ When a key is created or revoked, a `cache.invalidate` event is broadcast on the
 
 ## What's Next
 
-- [Authentication & OAuth](authentication.md) — gateway token and OAuth flow
-- [Exec Approval](exec-approval.md) — require `operator.approvals` scope
-- [Security Hardening](../deployment/security-hardening.md) — full 5-layer permission overview
+- [Authentication & OAuth](#authentication) — gateway token and OAuth flow
+- [Exec Approval](#exec-approval) — require `operator.approvals` scope
+- [Security Hardening](#deploy-security) — full 5-layer permission overview
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/authentication.md

@@ -192,5 +192,7 @@ source .env.local
 
 ## What's Next
 
-- [Providers Overview](../providers/overview.md) — all supported LLM providers and how to configure them
-- [Hooks & Quality Gates](../advanced/hooks-quality-gates.md) — add validation to agent outputs
+- [Providers Overview](#providers-overview) — all supported LLM providers and how to configure them
+- [Hooks & Quality Gates](#hooks-quality-gates) — add validation to agent outputs
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/browser-automation.md

@@ -253,5 +253,7 @@ Returns:
 
 ## What's Next
 
-- [Exec Approval](../advanced/exec-approval.md) — require human sign-off before running commands
-- [Hooks & Quality Gates](../advanced/hooks-quality-gates.md) — add pre/post checks to agent actions
+- [Exec Approval](#exec-approval) — require human sign-off before running commands
+- [Hooks & Quality Gates](#hooks-quality-gates) — add pre/post checks to agent actions
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/caching.md

@@ -88,5 +88,7 @@ Both backends implement the same interface:
 
 ## What's Next
 
-- [Database Setup](../deployment/database-setup.md) — PostgreSQL configuration
-- [Production Checklist](../deployment/production-checklist.md) — Deploy with confidence
+- [Database Setup](#deploy-database) — PostgreSQL configuration
+- [Production Checklist](#deploy-checklist) — Deploy with confidence
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/channel-instances.md

@@ -244,6 +244,8 @@ DELETE /v1/channels/instances/{id}/writers/{userId}?group_id=<group_id>
 
 ## What's Next
 
-- [Channel Overview](../channels/overview.md)
-- [Multi-Channel Setup](../recipes/multi-channel-setup.md)
-- [Multi-Tenancy](../core-concepts/multi-tenancy.md)
+- [Channel Overview](#channels-overview)
+- [Multi-Channel Setup](#recipe-multi-channel)
+- [Multi-Tenancy](#multi-tenancy)
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/cli-credentials.md

@@ -10,6 +10,8 @@ CLI Credentials let you define named credential sets (API keys, tokens, connecti
 
 ## What's Next
 
-- [Exec Approval](exec-approval.md)
-- [API Keys & RBAC](api-keys-rbac.md)
-- [Security Hardening](../deployment/security-hardening.md)
+- [Exec Approval](#exec-approval)
+- [API Keys & RBAC](#api-keys-rbac)
+- [Security Hardening](#deploy-security)
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/context-pruning.md

@@ -11,7 +11,7 @@ As agents run long tasks, tool results accumulate in the conversation history. L
 1. **Soft trim** — truncate oversized tool results to head + tail, dropping the middle.
 2. **Hard clear** — if the context is still too full, replace entire tool results with a short placeholder.
 
-Context pruning is distinct from [session compaction](../core-concepts/sessions-and-history.md). Compaction permanently summarizes and truncates conversation history. Pruning is non-destructive: the original tool results remain in the session store and are never modified — only the message slice sent to the LLM is trimmed.
+Context pruning is distinct from [session compaction](#sessions-and-history). Compaction permanently summarizes and truncates conversation history. Pruning is non-destructive: the original tool results remain in the session store and are never modified — only the message slice sent to the LLM is trimmed.
 
 ---
 
@@ -210,12 +210,14 @@ Increase `softTrim.headChars` and `softTrim.tailChars`, or raise `softTrim.maxCh
 
 **Context still overflows despite pruning**
 
-Pruning only acts on tool results. If long user messages or system prompt components dominate the context, pruning will not help. Consider [session compaction](../core-concepts/sessions-and-history.md) or reduce the system prompt size.
+Pruning only acts on tool results. If long user messages or system prompt components dominate the context, pruning will not help. Consider [session compaction](#sessions-and-history) or reduce the system prompt size.
 
 ---
 
 ## What's Next
 
-- [Sessions & History](../core-concepts/sessions-and-history.md) — session compaction, history limits
-- [Memory System](../core-concepts/memory-system.md) — persistent memory across sessions
-- [Configuration Reference](../reference/config-reference.md) — full agent config reference
+- [Sessions & History](#sessions-and-history) — session compaction, history limits
+- [Memory System](#memory-system) — persistent memory across sessions
+- [Configuration Reference](#config-reference) — full agent config reference
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/cost-tracking.md

@@ -235,6 +235,8 @@ The check runs once per request, before any LLM calls. Sub-agent delegations run
 
 ## What's Next
 
-- [Usage & Quota](usage-quota.md) — per-user request limits and token counts
-- [Observability](../deployment/observability.md) — OpenTelemetry export for spans including cost fields
-- [Configuration Reference](../reference/config-reference.md) — full `telemetry` config options
+- [Usage & Quota](#usage-quota) — per-user request limits and token counts
+- [Observability](#deploy-observability) — OpenTelemetry export for spans including cost fields
+- [Configuration Reference](#config-reference) — full `telemetry` config options
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/custom-tools.md

@@ -187,6 +187,8 @@ The check runs on the **fully rendered command** after all `{{.param}}` substitu
 
 ## What's Next
 
-- [MCP Integration](./mcp-integration.md) — connect external tool servers instead of writing shell commands
-- [Exec Approval](./exec-approval.md) — require human approval before commands run
-- [Sandbox](./sandbox.md) — run commands inside Docker for extra isolation
+- [MCP Integration](#mcp-integration) — connect external tool servers instead of writing shell commands
+- [Exec Approval](#exec-approval) — require human approval before commands run
+- [Sandbox](#sandbox) — run commands inside Docker for extra isolation
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->

advanced/exec-approval.md

@@ -194,6 +194,8 @@ Set `"always": true` to permanently allow this binary for the lifetime of the pr
 
 ## What's Next
 
-- [Sandbox](./sandbox.md) — run exec commands inside an isolated Docker container
-- [Custom Tools](./custom-tools.md) — define tools backed by shell commands
-- [Security Hardening](../deployment/security-hardening.md) — full five-layer security overview
+- [Sandbox](#sandbox) — run exec commands inside an isolated Docker container
+- [Custom Tools](#custom-tools) — define tools backed by shell commands
+- [Security Hardening](#deploy-security) — full five-layer security overview
+
+<!-- goclaw-source: 57754a5 | updated: 2026-03-18 -->