feat(integrations): add 8 missing mainstream MCP server templates (#59)

* feat(integrations): add filesystem, fetch, memory, puppeteer, sequential-thinking, git, google-maps, time

* chore(integrations): fix taplo formatting for filesystem and puppeteer

integrations/filesystem.toml

@@ -0,0 +1,36 @@
+id = "filesystem"
+name = "Filesystem"
+description = "Read, write, search, and manage local files through the official MCP filesystem server"
+category = "devtools"
+icon = "📁"
+tags = ["files", "local", "read", "write", "search"]
+
+[transport]
+type = "stdio"
+command = "sh"
+args = [
+  "-c",
+  "exec npx -y @modelcontextprotocol/server-filesystem@latest \"$HOME\"",
+]
+
+[health_check]
+interval_secs = 60
+unhealthy_threshold = 3
+
+setup_instructions = """
+Exposes your home directory to agents by default.
+
+To restrict access to specific directories, add a custom entry in config.toml:
+
+```toml
+[[mcp_servers]]
+name = "filesystem"
+
+[mcp_servers.transport]
+type = "stdio"
+command = "npx"
+args = ["-y", "@modelcontextprotocol/server-filesystem@latest", "/path/to/expose"]
+```
+
+Requires Node.js / npx.
+"""