feat: docker unlimited defaults + i18n strings for admin UI

- docker-compose: log rotation 10m×3 → 50m×5 for power users
- docker-compose: add shm_size 2gb for AI workloads
- i18n: add strings for Limits & Resources admin panel

packages/shared/src/i18n/en.ts

@@ -241,6 +241,24 @@ export const en = {
       logoRequirements: "PNG, SVG, or JPEG. Max 500KB.",
       dragDrop: "Drag and drop or click to upload",
     },
+    limitsAndResources: "Limits & Resources",
+    maxFileSize: "Max File Size",
+    maxBatchSize: "Max Batch Size",
+    concurrentJobs: "Concurrent Jobs",
+    workerThreads: "Worker Threads",
+    maxPipelineSteps: "Max Pipeline Steps",
+    processingTimeout: "Processing Timeout",
+    rateLimitPerMin: "Rate Limit (req/min)",
+    unlimited: "Unlimited",
+    auto: "Auto",
+    disabled: "Disabled",
+    envOverride: "Set by environment variable",
+    maxCanvasPixels: "Max Canvas Pixels",
+    maxSvgSize: "Max SVG Size",
+    maxLogoSize: "Max Logo Size",
+    maxSplitGrid: "Max Split Grid",
+    maxPdfPages: "Max PDF Pages",
+    sessionDuration: "Session Duration",
   },
   auth: {
     login: "Login",