## Summary
- add idempotent block, unblock, and paginated block-list APIs across
HTTP, gRPC, service, and repository layers
- hide blocked creators from authenticated personal discovery while
leaving anonymous discovery unchanged
- preserve joined, favorited, and directly accessed rooms with a
creator_blocked marker
- filter blocked users from message history, search, context, pinned
messages, replay, unread counts, live events, and reconnect replay
- add the user_blocks migration, SQLx offline metadata, and
repository/API coverage
## Behavior
Blocking is private to the current account. It does not alter the
blocked account or public anonymous discovery. Detailed personal room
lists remain complete and expose creator_blocked so clients can label
the creator. Observer-specific realtime filtering advances event cursors
and fails closed when block-state lookup is unavailable.
## Verification
- make check
- make fmt-check
- cargo test --workspace: 5222 passed
- synctv-api-common library tests: 638 passed, 165 ignored
- PostgreSQL favorite-room creator_blocked integration test
- SQLx prepare across the workspace
- real two-account HTTP, realtime, and room-flow integration test
Client: https://github.com/synctv-org/synctv-app/pull/47
## Summary
- store room public visibility as a first-class database field
independent of password and guest settings
- expose visibility through client, management, HTTP, gRPC, CLI,
discovery, and room creation review flows
- add `synctv room visibility ROOM_ID --public|--private` for changing
existing rooms with an explicit actor
- deny anonymous guest access to private rooms while preserving
authenticated member access
- revoke existing guest sessions immediately when a room becomes private
without disconnecting authenticated members
## Validation
- `cargo fmt --all -- --check`
- `cargo clippy -p synctv-core -p synctv-api-common -p synctv-api-http
-p synctv-api-grpc -p synctv --all-targets -- -D warnings`
- `cargo clippy -p synctv-management -p synctv --all-targets -- -D
warnings`
- `cargo check -p synctv-core -p synctv-api-common -p synctv-api-http -p
synctv-api-grpc -p synctv`
- `cargo check -p synctv-management -p synctv`
- `cargo test -p synctv room_visibility`
- verified `synctv room visibility --help` renders the required actor
and exactly one of `--public` or `--private`
- targeted realtime bridge, guest principal, realtime event, and room
service tests
- real macOS client verification: changing a public room to private
terminated the guest connection in about two seconds with
`REALTIME_TERMINATION_CODE_GUEST_ACCESS_REVOKED`; authenticated users
remained connected
## Summary
- Treat explicit null collection fields in Bilibili VOD playback
responses as empty collections.
- Cover DASH streams, backup URLs, Dolby audio, supported formats, DURL
responses, subtitles, video pages, UGC collections, and PGC episodes.
- Resolve Bilibili DASH resources from versioned playback metadata and
provide every equivalent CDN URL to the existing candidate executor.
- Prefer the URL selected by the player, then retry primary and backup
CDNs before committing the downstream response.
## Root cause
Bilibili occasionally emits explicit null for fields normally
represented as JSON arrays, which caused playback/start deserialization
errors. Proxy DASH resource requests also used a single CDN even though
the provider response included backup URLs.
## Validation
- cargo fmt --all -- --check
- cargo check for synctv-api-common, synctv-api-http, and
synctv-api-grpc
- synctv-media-providers Bilibili tests: 91 passed
- synctv-core Bilibili tests: 17 passed, 2 ignored
- candidate executor tests: 2 passed
- Real playback/start, proxy MPD, Range request, CDN fault injection,
dev build, and dev smoke checks
## Summary
- Add recoverable soft deletion for users, rooms, playlists, media, and
chat messages, with retention-based physical cleanup.
- Hide deleted users and owned resources from active API, room,
playback, messaging, and realtime paths while preserving restoration
metadata.
- Add user lifecycle administration across HTTP, gRPC, management
runtime, and SyncTV CLI, including deleted-user listing and restore
operations.
- Add lifecycle migration, cleanup orchestration, audit fields,
resource-change events, and refreshed SQLx offline metadata.
## Design
- Model account, administrator, system, room, and user deletion sources
explicitly so cascade ownership and audit history remain deterministic.
- Release email and OAuth identity occupancy during deletion;
restoration reclaims available identities and reports conflicts
according to restore options.
- Preserve recoverable aggregate rows during the retention window,
remove ephemeral membership and playback state immediately, and purge
expired data in dependency order.
- Wait for realtime observation acknowledgements before publishing
lifecycle changes to avoid subscription registration races.
## Verification
- `make nextest`: 6707 passed, 0 skipped
- `make clippy`: passed for the workspace and all targets
- `make clippy-check`: passed
- `cargo fmt --all -- --check`: passed
- `git diff --check`: passed
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