fix(minimax-mem0): convert to Agent Plugins 1.0 format (plugin.json + mcp.json at root)

The runtime imports validate against the open Agent Plugins 1.0 spec
(agent-plugins.org), not the Feishu submission guide's .minimax-plugin/ layout.
Discovered via the in-app import (GitHub Plugin cannot be imported).

integrations/minimax-mem0/.minimax-plugin/plugin.json

@@ -1,18 +0,0 @@
-{
-  "schemaVersion": 1,
-  "name": "mem0",
-  "displayName": "Mem0 Memory",
-  "version": "0.1.0",
-  "description": "Persistent long-term memory for your agent: remember preferences, decisions, and project context across sessions, and recall them on demand.",
-  "author": "Mem0",
-  "icon": "icon.png",
-  "category": "Productivity",
-  "exampleQueries": [
-    "Remember that I prefer TypeScript and pnpm",
-    "What do you remember about my project?",
-    "Update what you know about my deployment setup"
-  ],
-  "apps": [],
-  "mcpServers": ["mem0.mcp.json"],
-  "skills": ["skills/memory/SKILL.md"]
-}

integrations/minimax-mem0/mcp.json

@@ -3,10 +3,7 @@
   "mcpServers": {
     "mem0": {
       "type": "streamable-http",
-      "url": "https://mcp.mem0.ai/mcp/",
+      "url": "https://mcp.mem0.ai/mcp/"
-      "headers": {
-        "Authorization": "Token ${MEM0_API_KEY}"
-      }
     }
   }
 }

integrations/minimax-mem0/mem0.mcp.json

@@ -1,14 +0,0 @@
-{
-  "schemaVersion": 1,
-  "mcpServers": {
-    "mem0": {
-      "type": "streamable-http",
-      "url": "https://mcp.mem0.ai/mcp/",
-      "headers": {
-        "Authorization": "Token ${MEM0_API_KEY}"
-      },
-      "description": "Mem0 long-term memory: add, search, update, and delete memories so the agent remembers context across sessions.",
-      "timeout": 30000
-    }
-  }
-}