Add CHANGELOG and version frontmatter for v1.0.0 release

Author: kevinkiklee

CHANGELOG.md

@@ -0,0 +1,30 @@
+# Changelog
+
+All notable changes to this skill are documented here. Versioning follows [Semantic Versioning](https://semver.org/).
+
+## [1.0.0] — 2026-04-22
+
+Initial public release.
+
+### Coverage
+
+- **Photoshop UXP** v9.2.0 / Manifest v5 / Photoshop 27.4 (February 2026)
+- **Lightroom Classic** SDK 15.3 / Lua 5.1.5
+
+### Files
+
+- `SKILL.md` — agent-facing entry point with capability matrix, critical pitfalls, quick-reference snippets, develop parameter catalog, Info.lua reference, and common mistakes
+- `ps-uxp-sdk.md` — deep Photoshop UXP reference (Document/Layer DOM, Imaging API, batchPlay, executeAsModal, Spectrum/SWC, Canvas limits, hybrid C++ bridge, known issues)
+- `lrc-sdk.md` — deep Lightroom Classic SDK reference (export/publish pipeline, catalog/photo APIs, LrView, LrDevelopController 95 functions, memory-leak prevention, Controller SDK)
+
+### Audit fixes (2026-04-22)
+
+Audited every API claim against the published Adobe SDK references. Corrections:
+
+- Document property count (30 → 33)
+- Mask function signatures (`selectMask`, `deleteMask`, etc.) now show actual `(id, param)` form
+- Removed deprecated `permissions.webview.allow` field from manifest examples (removed in UXP 9.1)
+- `LrDialogs.presentFloatingDialog` corrected to `(plugin, args)` signature
+- `LrDialogs.stopModalWithResult` corrected to `(dialog, result)` signature
+- `catalog:withPrivateWriteAccessDo` examples no longer include a bogus action-name argument
+- Hybrid C++ bridge messaging API names corrected to `photoshop.messaging.*` (`addSDKMessagingListener`, `removeSDKMessagingListener`, `sendSDKPluginMessage`)

SKILL.md

@@ -1,6 +1,7 @@
 ---
 name: adobe-plugin-development
 description: Use when building, modifying, or debugging Adobe Photoshop UXP plugins or Lightroom Classic plugins — panel UI, pixel access, develop-module observation, memory management in long-lived LrC processes, hybrid native bridges, UXP HTML/CSS/Canvas limits, and Spectrum widgets
+version: 1.0.0
 ---
 
 # Adobe Plugin Development