feat: Add Load Script functionality to script detail modal

- Create ScriptDownloaderService to download and modify script files from GitHub
- Add tRPC routes for loading scripts and checking file existence
- Add Load Script button to ScriptDetailModal with loading states
- Implement sed replacement for build.func source line in CT scripts
- Download CT scripts to scripts/ct/ and install scripts to scripts/install/
- Add visual indicators for script file availability
- Show success/error messages for script loading operations

src/server/api/routers/scripts.ts

@@ -4,6 +4,7 @@ import { scriptManager } from "~/server/lib/scripts";
 import { gitManager } from "~/server/lib/git";
 import { githubService } from "~/server/services/github";
 import { localScriptsService } from "~/server/services/localScripts";
+import { scriptDownloaderService } from "~/server/services/scriptDownloader";
 
 export const scriptsRouter = createTRPCRouter({
   // Get all available scripts
@@ -137,5 +138,66 @@ export const scriptsRouter = createTRPCRouter({
           count: 0
         };
       }
+    }),
+
+  // Load script files from GitHub
+  loadScript: publicProcedure
+    .input(z.object({ slug: z.string() }))
+    .mutation(async ({ input }) => {
+      try {
+        // Get the script details
+        const script = await localScriptsService.getScriptBySlug(input.slug);
+        if (!script) {
+          return {
+            success: false,
+            error: 'Script not found',
+            files: []
+          };
+        }
+
+        // Load the script files
+        const result = await scriptDownloaderService.loadScript(script);
+        return result;
+      } catch (error) {
+        console.error('Error in loadScript:', error);
+        return {
+          success: false,
+          error: error instanceof Error ? error.message : 'Failed to load script',
+          files: []
+        };
+      }
+    }),
+
+  // Check if script files exist locally
+  checkScriptFiles: publicProcedure
+    .input(z.object({ slug: z.string() }))
+    .query(async ({ input }) => {
+      try {
+        const script = await localScriptsService.getScriptBySlug(input.slug);
+        if (!script) {
+          return {
+            success: false,
+            error: 'Script not found',
+            ctExists: false,
+            installExists: false,
+            files: []
+          };
+        }
+
+        const result = await scriptDownloaderService.checkScriptExists(script);
+        return {
+          success: true,
+          ...result
+        };
+      } catch (error) {
+        console.error('Error in checkScriptFiles:', error);
+        return {
+          success: false,
+          error: error instanceof Error ? error.message : 'Failed to check script files',
+          ctExists: false,
+          installExists: false,
+          files: []
+        };
+      }
     })
 });