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- Add per-task file upload with image preview in task editor - Add dedicated annotation editor page (task_drawing.html) with Fabric.js - Add color picker, stroke width, and line dash controls to annotation toolbar - Apply property changes to selected objects in real-time - Disable style controls until a drawing tool or object is selected - Remove zoom/pan from annotation toolbar (simplified UX) - Auto-switch to select mode after placing annotation elements - Show annotation overlay on task image previews (read-only canvas) - Add file proxy route in measure blueprint for task file access - Add file_path/file_type fields to TaskCreate/TaskUpdate Pydantic schemas - Replace Tailwind CDN with compiled CSS (tailwind.config.js with full shades) - Fix Alpine.js x-init crash: extract annotations JSON to <script> tags (recipe_preview.html, task_execute.html) to avoid HTML attribute breakage Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>