Happier: Claude Codex OpenCode

This release is a major upgrade to self-hosting and cross-device workflows (plaintext mode, keyless auth, mTLS, "Add Phone" pairing, and safer canonical URLs), plus a big step forward in in-app development features (panes, files/source control, diffs, replay/forking, and OpenCode deeper integration). It also improves reliability across web/desktop/mobile with better crash recovery, diagnostics, notifications controls, and more resilient daemon connectivity. - Refactored the Files and Source Control UI to support richer session file workflows (changed-files review, repository tree, commit controls, files editing, and safer SCM operations like discard/stage). - Added directory filtering and viewability tuning helpers for SCM review surfaces. - Improved SCM reliability with adaptive polling, mutation invalidation, and better fallbacks when session/workspace paths are missing or a session is inactive. - Improved diff caching and prefetch behavior so loaded diffs are retained more reliably while scrolling and expanding rows. - Added a new pane-based UI architecture (details/right panes) with lazy loading, prefetching, and route integration for smoother navigation. - Added multi-pane appearance preferences and improved details tab open/pin behavior. - Added a resizable permanent sidebar drawer with persisted width preferences. - Improved connection status UI to show the active server label more clearly. - Refactored the code diff/rendering stack (Pierre web diff viewer, worker runtime/warmup, virtualization controls, unified folding, and improved syntax/language handling). - Improved markdown rendering for developer workflows with diff-aware code fences and better table scrolling. - Fixed a security issue by preventing Mermaid WebView HTML injection. - Improved transcript UX with tool-call grouping controls and timeline improvements. - Added compact/collapsible tool card behaviors and richer tool header/status handling (including clearer permission states). - Added support for freeform “Ask a question” prompts in tool renderers. - Improved list performance and stability by expanding FlashList usage, with a web fallback to FlatList on known FlashList layout crash signatures. - Added session fork actions in the UI (from header/info/actions). - Added “fork from message” semantics so forks happen at the expected point in the conversation. - Added Happier Replay forking support across providers, including replay-seed propagation for continue/fork workflows. - Added replay seed sizing limits to prevent oversized prompts and improve reliability. - Improved replay synopsis retrieval with synopsis pointers and bounded fallback scanning for faster recovery. - Added replay summary runner configuration support (backend/model), and ensured fork/continue flows forward summary runner settings when needed. - Implemented major OpenCode runtime/server integration (managed server orchestration, session control, question/prompt handling, and forking support). - Improved OpenCode runtime stability with readiness/health polling, safer shutdown cleanup, and better fallbacks when idle streaming is missing. - Added support for session pinning - Added support for session tags - Improved permissions display UI - Improved permissions notifications & user actions notifications - Added plaintext storage mode support for self-hosted servers (so sessions can be stored plaintext-at-rest when configured). - Added keyless external authentication support for self-hosted and enterprise auth providers. - Added mTLS login support for environments that require certificate-based authentication. - Added an “Add your phone” pairing flow, including QR-based pairing from web/desktop and in-app pairing helpers. - Added QR restore flows so reconnecting a device is smoother when migrating or recovering access. And many more! Full changelog on GitHub