Enhance logging and error handling across tools; add full tool audit and Playwright tests

- Added model mismatch warnings in colorize, enhance-faces, and upscale routes.
- Improved error handling in colorize, enhance_faces, remove_bg, restore, and upscale scripts with detailed logging.
- Updated Dockerfile to align NCCL versions for compatibility.
- Introduced a new full tool audit script to test all tools for functionality and GPU usage.
- Created Playwright E2E tests for GPU-dependent tools to ensure proper functionality and performance.

apps/api/src/routes/tools/colorize.ts

@@ -142,6 +142,13 @@ export function registerColorize(app: FastifyInstance) {
         });
       }
 
+      if (model !== "auto" && result.method !== model) {
+        request.log.warn(
+          { toolId: "colorize", requested: model, actual: result.method },
+          `Colorize model mismatch: requested ${model} but used ${result.method}`,
+        );
+      }
+
       return reply.send({
         jobId,
         downloadUrl: `/api/v1/download/${jobId}/${encodeURIComponent(outputFilename)}`,

apps/api/src/routes/tools/enhance-faces.ts

@@ -122,6 +122,13 @@ export function registerEnhanceFaces(app: FastifyInstance) {
         });
       }
 
+      if (model !== "auto" && result.model !== model) {
+        request.log.warn(
+          { toolId: "enhance-faces", requested: model, actual: result.model },
+          `Face enhance model mismatch: requested ${model} but used ${result.model}`,
+        );
+      }
+
       return reply.send({
         jobId,
         downloadUrl: `/api/v1/download/${jobId}/${encodeURIComponent(outputFilename)}`,

apps/api/src/routes/tools/remove-background.ts

@@ -145,6 +145,7 @@ export function registerRemoveBackground(app: FastifyInstance) {
           originalSize: fileBuffer.length,
           processedSize: transparentResult.length,
           filename,
+          model: settings.model,
         });
       } catch (err) {
         request.log.error({ err, toolId: "remove-background" }, "Background removal failed");

apps/api/src/routes/tools/upscale.ts

@@ -166,6 +166,13 @@ export function registerUpscale(app: FastifyInstance) {
         });
       }
 
+      if (model !== "auto" && result.method !== model) {
+        request.log.warn(
+          { toolId: "upscale", requested: model, actual: result.method },
+          `Upscale model mismatch: requested ${model} but used ${result.method}`,
+        );
+      }
+
       return reply.send({
         jobId,
         downloadUrl: `/api/v1/download/${jobId}/${encodeURIComponent(outputFilename)}`,