Support direct multipart/base64 image uploads - #61
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crisng95 merged 1 commit intoSep 24, 2026
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External callers should not have to share the FlowKit service filesystem namespace. This PR makes direct bytes the recommended upload path while keeping file_path as a server-local convenience mode.\n\nChanges:\n- add POST /api/flow/upload-image-file (multipart/form-data)\n- keep JSON image_base64 upload as a first-class external-caller path\n- document file_path as server-local only\n- return 403 for unreadable local files and descriptive 404 for paths invisible to the service namespace (including PrivateTmp-style cases)\n- preserve session-project auto creation when project_id is omitted\n- add OpenAPI descriptions and regression coverage\n- add python-multipart dependency\n\nValidation: 380/380 upstream unit tests passed locally.