happy path for saving state of differnet segment bitrates and showing each of the status bars to the client

[tani-gross]

No description provided.

[Copilot]

Pull request overview

This PR adds end-to-end “transcoding progress” tracking (persisted in Postgres and streamed via RabbitMQ/WebSocket) and exposes per-bitrate progress bars in the frontend so clients can see low/medium/high transcode completion.

Changes:

• Persist per-segment transcode state in Postgres and publish transcode_progress status events.
• Extend upload-status WebSocket to send a transcode progress snapshot on connect.
• Update the frontend to render and finalize completion based on per-profile transcode progress.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
upload-service/src/main/java/com/distributed26/videostreaming/upload/upload/UploadStatusWebSocket.java	Adds transcode progress snapshot emission on WS bind.
upload-service/src/main/java/com/distributed26/videostreaming/upload/upload/UploadServiceApplication.java	Wires TranscodedSegmentStatusRepository into the status app.
upload-service/src/main/java/com/distributed26/videostreaming/upload/db/TranscodedSegmentStatusRepository.java	New repo for reading transcode status counts from Postgres.
upload-service/docs/db/schema.sql	Adds transcoded_segment_status table + index.
shared/src/main/java/com/distributed26/videostreaming/shared/upload/events/TranscodeSegmentState.java	New enum for transcode state machine.
shared/src/main/java/com/distributed26/videostreaming/shared/upload/events/TranscodeProgressEvent.java	New JobTaskEvent subtype for reporting transcode progress.
shared/src/main/java/com/distributed26/videostreaming/shared/upload/RabbitMQJobTaskBus.java	Adds parsing/typing support for transcode_progress messages.
processing-service/src/main/java/com/distributed26/videostreaming/processing/db/TranscodedSegmentStatusRepository.java	New repo for upserting per-segment state and counting DONE segments.
processing-service/src/main/java/com/distributed26/videostreaming/processing/TranscodingWorker.java	Emits TRANSCODING/UPLOADING/DONE/FAILED state transitions.
processing-service/src/main/java/com/distributed26/videostreaming/processing/TranscodingTask.java	Adds a pre-upload callback and enables audio encoding.
processing-service/src/main/java/com/distributed26/videostreaming/processing/ProcessingServiceApplication.java	Tracks total segments, publishes transcode progress events, and triggers manifest generation when complete.
processing-service/pom.xml	Adds Postgres JDBC dependency.
frontend/index.html	Adds UI blocks for Low/Medium/High transcode progress.
frontend/app.js	Handles transcode_progress events, updates per-profile UI, and finalizes success when all profiles complete.
docker_compose.swarm.yaml	Passes PG_* env vars into processing service.
docker-compose.yaml	Configures processing service PG_URL/PG_USER/PG_PASSWORD env vars.

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[Copilot]

@tani-gross I've opened a new pull request, #79, to work on those changes. Once the pull request is ready, I'll request review from you.