fix: correct manifest.json to pass MCPB validation

- Add required 'version' field (1.0.0)
- Change 'author' from string to object with name/url
- Move 'mcp_config' inside 'server' object
- Fix 'user_config' to use proper field-level structure
- Remove invalid 'compatibility' and 'capabilities' top-level fields
- Create bundle icon (512x512 PNG) to satisfy icon requirement
- Remove icon placeholder file

Validation: ✅ mcpb validate passes with warnings only
Tasks: T149 (icon), T158 (validate), T159 (build) marked complete

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

manifest.json

@@ -1,45 +1,36 @@
 {
-  "version": "0.3",
+  "manifest_version": "0.3",
   "name": "obsidian-mcp",
+  "version": "1.0.0",
   "display_name": "Obsidian CLI Bundle",
   "description": "MCP Bundle for Obsidian CLI - Enable AI assistants to manage Obsidian vaults through conversational interface",
-  "author": "Obsidian MCP Contributors",
+  "author": {
+    "name": "Obsidian MCP Contributors",
+    "url": "https://github.com/obsidian-mcp/obsidian-mcp-bundle"
+  },
   "homepage": "https://github.com/obsidian-mcp/obsidian-mcp-bundle",
   "license": "MIT",
   "icon": "assets/icon.png",
   "server": {
     "type": "node",
-    "entry_point": "dist/index.js"
-  },
-  "mcp_config": {
-    "command": "node",
-    "args": [
-      "${__dirname}/dist/index.js"
-    ],
-    "env": {
-      "OBSIDIAN_VAULT": "${user_config.vault_name}",
-      "MCP_LOG_LEVEL": "info"
-    }
-  },
-  "user_config": {
-    "type": "object",
-    "properties": {
-      "vault_name": {
-        "type": "string",
-        "description": "Name of the Obsidian vault to manage",
-        "required": true
+    "entry_point": "dist/index.js",
+    "mcp_config": {
+      "command": "node",
+      "args": [
+        "${__dirname}/dist/index.js"
+      ],
+      "env": {
+        "OBSIDIAN_VAULT": "${user_config.vault_name}",
+        "MCP_LOG_LEVEL": "info"
       }
     }
   },
-  "compatibility": {
-    "platforms": ["darwin", "win32", "linux"],
-    "node": ">=18.0.0",
-    "obsidian_cli": ">=1.0.0"
-  },
-  "capabilities": {
-    "tools": true,
-    "resources": false,
-    "prompts": false
-  },
-  "tools": []
+  "user_config": {
+    "vault_name": {
+      "type": "string",
+      "title": "Vault Name",
+      "description": "Name of the Obsidian vault to manage (case-sensitive)",
+      "required": true
+    }
+  }
 }