feat(api): add resize, crop, rotate, convert, compress, metadata, and color tool routes

Seven tool route files using the createToolRoute factory, registering 10 API
endpoints total (color adjustments covers 4 tool IDs). Also fixes the tool
factory generic to properly infer Zod output types and clamps the compress
binary-search quality to 1-100.

apps/api/src/routes/tool-factory.ts

@@ -10,7 +10,7 @@ export interface ToolRouteConfig<T> {
   /** Unique tool identifier, used as the URL path segment. */
   toolId: string;
   /** Zod schema that validates the settings JSON from the request. */
-  settingsSchema: z.ZodSchema<T>;
+  settingsSchema: z.ZodType<T, z.ZodTypeDef, unknown>;
   /** The processing function: takes input buffer + validated settings, returns output. */
   process: (
     inputBuffer: Buffer,