feat: Implement MCP Installation Service and related components

- Added `mcpInstallationService.ts` to handle API interactions for MCP installations.
- Created types for MCP installations in `mcp-installations.ts`.
- Developed the add installation view with a wizard component in `add.vue`.
- Implemented the main MCP server installations index view in `index.vue`.
- Added view details for individual MCP servers in `view/[id].vue`.
- Introduced event bus for managing installation updates across components.
- Enhanced UI with loading states, error handling, and success notifications.
- Re-exported relevant types in `types.ts` for better type management.

Author: Lasim

services/backend/api-spec.json

@@ -0,0 +1,19 @@
+CREATE TABLE `mcpServerInstallations` (
+	`id` text PRIMARY KEY NOT NULL,
+	`team_id` text NOT NULL,
+	`server_id` text NOT NULL,
+	`user_id` text NOT NULL,
+	`installation_name` text NOT NULL,
+	`installation_type` text DEFAULT 'local' NOT NULL,
+	`user_environment_variables` text,
+	`created_at` integer NOT NULL,
+	`updated_at` integer NOT NULL,
+	`last_used_at` integer,
+	FOREIGN KEY (`team_id`) REFERENCES `teams`(`id`) ON UPDATE no action ON DELETE cascade,
+	FOREIGN KEY (`server_id`) REFERENCES `mcpServers`(`id`) ON UPDATE no action ON DELETE cascade,
+	FOREIGN KEY (`user_id`) REFERENCES `authUser`(`id`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE INDEX `mcp_installations_team_name_idx` ON `mcpServerInstallations` (`team_id`,`installation_name`);--> statement-breakpoint
+CREATE INDEX `mcp_installations_team_server_idx` ON `mcpServerInstallations` (`team_id`,`server_id`);--> statement-breakpoint
+CREATE INDEX `mcp_installations_user_idx` ON `mcpServerInstallations` (`user_id`);