Feat: Added video upscaling with Real-ESRGAN nn upscaling

[Vchen7629]

• feat(backend): created shared golang project for shared code across my go services
• refactor(backend): moved shared middleware package code like logging.go and cors.go into the shared go project
• refactor(backend): moved duplicated kv related code from go services into the shared folder under the kv package
• chore(shared): ran go mod tidy
• refactor(backend): moved health_check.go and shared queries.go for the storage package from individual services to shared folder to reduce duplication
• refactor(backend): moved the durable consumer creation into a seperate function in shared folder to reduce code duplication
• refactor(video-upload): renamed video.go to http.go and move start http api inside
• refactor(backend): moved duplicate publisher.go from transcoder-worker and video-recombiner to shared
• feat(ci): added shared ci and coverage
• chore(backend): updated go.work to include pipeline tests
• fix(ci): updated go version to 1.26.2
• chore(backend): update go.mod for go services to v1.26.2
• docs(readme): updated readme go badge
• fix(ci): added / to shared path filter**
• fix(ci): wrong shared coverage folder path
• feat(shared): added videoJobMessage type struct for use in scene-split and video-upscale nats messages
• feat(video-upload): added helper functions for checking video resolution using ffmpeg and converting resolution string to integer for comparison
• tests(video-upload): added unit tests for video.go in service package
• feat(video-upload): updated http.go to check the video resolution and target resolution to decide whether to send it to the upscaler service or transcoder right away
• tests(video-upload): added extra tests for new LOC
• refactor(backend): created new unmarshalJetstreamMsg helper in shared folder since its reused across transcoder and video-recombiner subscriber.go
• refactor(backend): extracted duplicated loadConfig and stopHttpApi functions into shared folder
• refactor(video-status): removed duplicated logic in main.go with shared function from shared folder
• refactor(video-upload): replaced duplicate ConnectJobStatus with the one in shared
• refactor(backend): created shared ack and nak helper which also captures err and replaced duplicate lines
• feat(video-upscaling): initialized uv project for video-upscaling service
• feat(video-upscaling): created load_model.py to load the upscaling model from the .pth file
• feat(video-upscaling): created logging.py helper
• feat(video-upscaling): created helper functions for upscaling model
• fix(scene-detector): wrong import path
• refactor(shared): moved shared go files to a go folder since i will be also creating shared python files
• feat(shared): created python folder in shared for shared python code
• refactor(backend): moved duplicated python logic out of scene-detector into python folder in shared
• tests(backend): moved shared specific tests out of scene-detector into the shared python folder
• refactor(backend): extracted more logic from scene-detector service.py to shared
• refactor(backend): moved publish_jetstream to shared folder since its used for both scene-detector and video-upscaling
• fix(scene-detector): circular imports for SceneSplitMessage pydantic class
• tests(backend): moved consumer specific tests to shared
• Refactor(backend): added source_resolution to scene-split-message pydantic class and moved it to shared to be used across both scene-split and video-upscaler
• feat(video-upscaling): added video_upscale helper function
• fix(video-upscaling): updated path typing for load_model.py and batch.py
• feat(video-upscaling): created model_router.py to help choose the correct model based on the source and target resolutions
• feat(video-upscaling): created process_msg to handle downloading the video processing and reupload
• refactor(video-upscaling): extracted the print metrics into a seperate function
• feat(video-upscaling): created service.py to start the service and initialize service resources and connections
• chore: updated general makefile
• chore(frontend): removed unused assets
• refactor(frontend): combined videoDownloadButton and videoUploadButton into a single file
• feat(frontend): video upload with different features like transcode, upscale, denoise, and transfer
• fix(backend): updated logging.py in shared to accept service name rather than be hardcoded to scene-detector
• feat(scene-detector): updated the http route to accept source resolution and removed redundant ffmpeg resolution check
• fix(backend): added missing logger to connection.py
• fix(video-upscaling): removed duplicate logs and fixed output dir errpr
• fix(video-upscaling): updated 2k to 1440p
• fix(backend): updated shared upload_video to accept a storage_url
• tests(scene-detector): updated tests with missing params
• tests(shared): updated python shared tests with new params
• deps(shared-python): added pyrefly
• chore(backend): ruff formatting
• feat(ci): added ci for shared python folder
• refactor(backend): moved shared start health http server function out of video-recombiner and transcoder-worker into shared folder
• feat(video-upscaling): added upscaling models
• fix(video-upscaling): added missing comma to video_downscale
• chore(video-upscaling): added more testing dependencies
• tests(video-upscaling): added unit/integration tests for video-upscaling
• fix(video-upload): added missing http request values to tests
• fix(transcoder-worker): added bandaid -p fix
• deps(shared-python): added pytest-cov for test coverage
• chore(shared-python): added type annotation
• refactor(backend): replaced duplicate service StartSeaweedFSFiler test function with the one from shared
• tests(shared-go): added unit tests for helpers.go
• refactor(backend): removed duplicate OpenTestVideo test helper from backend go services and replaced with the one from shared
• refactor(backend): replaced duplicate SetupNats in services with the one in shared