docs: fix sync gaps found in v0.6.0-to-v0.6.15 audit

- llm-guide.md: update version header from 0.6.10/693 to 0.6.15/686
  (header is not covered by check:llm-guide CI gate)
- CHANGELOG.md: remove duplicate v0.6.4 entry and duplicate v0.6.0 entry
  (release process ran twice; merge undici CVE fix into the richer entry)
- CHANGELOG.md: add ⚠️ Breaking Changes to v0.6.11 for error color removal
  and source token rename (were undocumented in release notes)
- migration.md: rename section header from "0.6.x → 0.7.0" to
  "0.6.10 → 0.6.11" — changes were introduced in v0.6.11, not v0.7.0

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XN8wtM6HyC6DEoCrNkoAKh

Author: claude

CHANGELOG.md

@@ -58,6 +58,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 
 ## [0.6.11] - 2026-06-23
 
+### ⚠️ Breaking Changes
+- **tokens:** removed `--sf-color-error` family (7 tokens: `--sf-color-error`, `-dark`, `-light`, `-muted`, `-strong`, `-subtle`, `--sf-color-text--on-error`) — use `--sf-color-danger` equivalents; see `docs/migration.md`
+- **tokens:** brand + status source tokens renamed from `-light`/`-dark` to `-source-light`/`-source-dark` (e.g. `--sf-color-primary-light` → `--sf-color-primary-source-light`); resolved semantic tokens are unchanged
+
 ### Features
 - **configurator:** add shade ramp without new utility classes
 - **docs:** add CI gate to keep llm-guide.md in sync with token registry
@@ -131,14 +135,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 ### Bug Fixes
 - remove trailing comma in artifacts.json
 
-## [0.6.4] - 2026-06-20
-
-### Features
-- merge per-size typography sub-properties into core/tokens.css
-
-### Bug Fixes
-- remove trailing comma in artifacts.json
-
 ## [0.6.3] - 2026-06-19
 
 ### Bug Fixes
@@ -160,15 +156,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 
 ## [0.6.0] - 2026-06-19
 
-### Breaking Changes
-- flatten gap tokens to base→semantic→component model
-- v0.6.0 usability-driven token-surface reduction
-
-### Bug Fixes
-- pin undici to >=7.28.0 via overrides to resolve high-severity CVEs
-
-## [0.6.0] - 2026-06-18
-
 A usability-driven token-surface reduction: ~182 tokens removed from the public
 API (876 → 694) by cutting power-user/vestigial families that real marketing,
 landing, and business sites never reach for, while keeping (and clarifying) the
@@ -187,6 +174,7 @@ families they do. See `docs/migration.md` for the upgrade guide.
 - **tokens:** `--sf-color-text--on-inverse` now correctly references `--sf-color-inverse` (was `--sf-color-text--inverse`)
 - **tokens:** add `var(--sf-color-bg, …)` fallback to `--sf-focus-ring-shadow` for contexts where `--sf-color-bg` is unset
 - **forms:** scope button default styles to `:not([class*="sf-"])` to avoid overriding Slashed UI component classes
+- **deps:** pin undici to >=7.28.0 via overrides to resolve high-severity CVEs
 
 ### Changed
 - **tokens:** alpha transparency for brand ghost/subtle/muted tokens now uses `oklch(from …)` syntax instead of `color-mix(…, transparent)` — equivalent output, better color-space fidelity

docs/llm-guide.md

@@ -1,6 +1,6 @@
 # Slashed Framework — LLM Reference Guide
 
-> Version: **0.6.10** · Tokens: **693** · Prefix: `--sf-`
+> Version: **0.6.15** · Tokens: **686** · Prefix: `--sf-`
 
 ---
 

docs/migration.md

@@ -3,7 +3,7 @@
 Mapping concepts from popular CSS frameworks to SLASHED, plus intra-project
 upgrade notes.
 
-## SLASHED 0.6.x → 0.7.0
+## SLASHED 0.6.10 → 0.6.11
 
 ### Color source tokens renamed