Implementation Roadmap API

Flask equivalent of the original FastAPI service.

GET /
Interactive UI for uploads and roadmap generation.

POST /update-document
Multipart form upload with field file.

POST /generate-roadmap
JSON body:

{"project_description":"string","output_format":"html|pdf","provider":"openrouter|deepseek","model":"optional"}

GET /download/<filename>
Download a generated roadmap PDF.

GET /context-info
Inspect the currently loaded template metadata.