feat(mcp): limit tools to fix overload (#1)

Restrict alwaysAllow in .roo/mcp.json to essential tools per server:
- git: 5 tools (status, diff, log, add, commit) — was wildcard *
- gitea: 8 tools (create/list/get/edit issues, PR, repo) — was wildcard *
- playwright: 6 tools (navigate, click, fill, screenshot, close, new_context) — was unrestricted

Reduces total registered tools from 105+ to ~40, eliminating context
bloat and VS Code/Roo registration failures.

Closes #1

.roo/mcp.json

@@ -8,7 +8,11 @@
 				"/home/pplate/pi_mcps/"
 			],
 			"alwaysAllow": [
-				"*"
+				"git_status",
+				"git_diff_unstaged",
+				"git_log",
+				"git_add",
+				"git_commit"
 			]
 		},
 		"filesystem": {
@@ -41,18 +45,38 @@
 				"8bf0c734ebda3e61d9c9068489ce58a2bf8d33db"
 			],
 			"alwaysAllow": [
-				"*"
+				"create_issue",
+				"list_repo_issues",
+				"get_issue",
+				"edit_issue",
+				"create_issue_comment",
+				"create_pull_request",
+				"get_repository",
+				"list_my_repositories"
 			]
 		},
 		"playwright": {
 			"command": "npx",
 			"args": [
 				"@playwright/mcp@latest"
+			],
+			"alwaysAllow": [
+				"browser_navigate",
+				"browser_click",
+				"browser_fill",
+				"browser_screenshot",
+				"browser_close",
+				"browser_new_context"
 			]
 		},
 		"mcp-image-gen": {
 			"command": "uv",
-			"args": ["--directory", "/home/pplate/pi_mcps/mcp/mcp-image-gen", "run", "src/server.py"],
+			"args": [
+				"--directory",
+				"/home/pplate/pi_mcps/mcp/mcp-image-gen",
+				"run",
+				"src/server.py"
+			],
 			"env": {
 				"COMFYUI_URL": "http://localhost:8188",
 				"IMAGE_OUTPUT_DIR": "/home/pplate/Pictures/mcp-generated"