fix: release TypeType 1.2.3

[Priveetee]

Summary

• prepare the TypeType 1.2.3 accelerated playback hotpatch
• advance Player, Frontend and Server to their reviewed 1.2.3 revisions
• keep Downloader, Token and documentation on their TypeType 1.2.2 revisions

Production behavior

• propagate playback speed through each web SABR state update
• scale bounded media and server read-ahead for playback speeds up to 4x
• preserve the selected video format during recovery
• avoid repeated playback-session recovery after accelerated seeks
• use @typetype/mse@0.1.43
• no database schema or environment value changes

Deployment requirements

• no database migration is required
• no environment change is required
• Frontend is available for AMD64 and ARM64 at ghcr.io/typetype-video/typetype@sha256:562834d8476f02d5d6f5df5a62e6827bed2a614de85c0c231fbb797f93b36b06
• Server is available for AMD64 and ARM64 at ghcr.io/typetype-video/typetype-server@sha256:4cb61c09bd31f156e51e1eabdc71cb197ad7290f99b81f895423369dbd1a92b5

Runtime verification

• beta serves Server 1.2.3-dev.732 at revision d39ce2cc594787b00b22b645b09ae46864180730
• beta serves the Frontend build generated from revision 4e27ab0d2d93e77acfe41194865018a7f6981916
• Player 0.1.43 is published on npm and pinned by the Frontend
• accelerated playback state, bounded windows and exact format recovery are covered by Player and Server tests

Tests

• Player audit, checks, documentation validation, JSR dry run, 140 tests with coverage, build and package import
• Server test
• Server check, including OpenAPI and JaCoCo
• Server shadowJar
• Frontend Biome, tests, Knip, Sherif and production build
• stack validation
• git diff --check

Rollback

• restore Frontend sha256:109c5184fc721334fd44ce98e9fd52b3ea807e985454461ea5fbb857081cbaf8
• restore Server sha256:6632184425f180ffa6667cfbd12c1d611f47431a130ea0f9fcfeeed1be5c1858
• keep TypeType 1.2.2 available as the previous stable release