feat: add MemPalace Claude Code plugin with hooks and instructions

- Introduced README.md for plugin overview and installation instructions.
- Added hooks configuration in hooks.json for auto-save and pre-compact functionality.
- Implemented stop and pre-compact hooks in bash scripts for memory management.
- Created marketplace.json and plugin.json for plugin metadata and versioning.
- Developed skills and instructions for help, init, mine, search, and status functionalities.
- Added CLI commands for executing hooks and displaying skill instructions.
- Implemented hooks_cli.py for handling hook logic and JSON input/output.
- Enhanced instruction files for user guidance on setup and usage.
- Updated .gitignore to exclude additional files.
- Created GitHub Actions workflow for syncing plugin version on push.

.claude-plugin/plugin.json

@@ -0,0 +1,33 @@
+{
+  "name": "mempalace",
+  "version": "3.0.0",
+  "description": "Give your AI a memory — mine projects and conversations into a searchable palace. 19 MCP tools, auto-save hooks, and guided setup.",
+  "author": { "name": "milla-jovovich" },
+  "license": "MIT",
+  "hooks": {
+    "Stop": "hooks/mempal-stop-hook.sh",
+    "PreCompact": "hooks/mempal-precompact-hook.sh"
+  },
+  "skills": [
+    { "name": "init", "file": "skills/init/SKILL.md" },
+    { "name": "search", "file": "skills/search/SKILL.md" },
+    { "name": "mine", "file": "skills/mine/SKILL.md" },
+    { "name": "help", "file": "skills/help/SKILL.md" },
+    { "name": "status", "file": "skills/status/SKILL.md" }
+  ],
+  "commands": [
+    { "name": "mempalace:help", "description": "Show MemPalace help — available tools, skills, architecture", "skill": "help" },
+    { "name": "mempalace:init", "description": "Set up MemPalace — install, configure MCP, onboard", "skill": "init" },
+    { "name": "mempalace:search", "description": "Search your memories across the palace", "skill": "search" },
+    { "name": "mempalace:mine", "description": "Mine projects and conversations into the palace", "skill": "mine" },
+    { "name": "mempalace:status", "description": "Show palace overview — wings, rooms, drawer counts", "skill": "status" }
+  ],
+  "mcp": {
+    "mempalace": {
+      "command": "python3",
+      "args": ["-m", "mempalace.mcp_server"]
+    }
+  },
+  "keywords": ["memory", "ai", "rag", "mcp", "chromadb", "palace", "search"],
+  "repository": { "type": "git", "url": "https://github.com/milla-jovovich/mempalace" }
+}