feat: add Codex plugin support with hooks, commands, and documentation

.codex-plugin/plugin.json

@@ -0,0 +1,35 @@
+{
+  "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" },
+  "homepage": "https://github.com/milla-jovovich/mempalace",
+  "repository": "https://github.com/milla-jovovich/mempalace",
+  "license": "MIT",
+  "keywords": ["memory", "ai", "rag", "mcp", "chromadb", "palace", "search"],
+  "skills": "./skills/",
+  "hooks": "./hooks.json",
+  "mcpServers": {
+    "mempalace": {
+      "command": "python3",
+      "args": ["-m", "mempalace.mcp_server"]
+    }
+  },
+  "interface": {
+    "displayName": "MemPalace",
+    "shortDescription": "AI memory system for Codex",
+    "longDescription": "Give your AI a persistent memory — mine projects and conversations into a searchable palace backed by ChromaDB, with 19 MCP tools, auto-save hooks, and guided skills.",
+    "developerName": "milla-jovovich",
+    "category": "Coding",
+    "capabilities": ["Interactive", "Read", "Write"],
+    "websiteURL": "https://github.com/milla-jovovich/mempalace",
+    "privacyPolicyURL": "https://github.com/milla-jovovich/mempalace",
+    "termsOfServiceURL": "https://github.com/milla-jovovich/mempalace",
+    "defaultPrompt": [
+      "Search my memories for recent decisions",
+      "Mine this project into my memory palace",
+      "Show my palace status and room counts"
+    ],
+    "brandColor": "#7C3AED"
+  }
+}