All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

• Add !! bang commands: a composer draft starting with !! runs the rest as a local shell command in the session's project directory and persists inline as a transcript block with exit status, duration, bounded streaming previews, and on-demand full output. Includes cancel, raw/rendered toggle, re-run, recall-to-composer with shell-style history, echo-to-session, and delete, plus Tab completion over PATH, project-relative paths, and global !! history. A /bang-commands page lists runs across sessions with per-entry edit, new, and jump actions. Server-enforced, capability-gated, default-off, and excluded from public shares.
• Add settings search: a substring filter whose matched rows stay operable in place, highlight matched tokens, and link to their named section. Value matching ships as an adjacent default-off toggle.
• Add a composer recall drawer: Ctrl+Up opens prefix-matched prior user turns with per-row go-to-turn navigation, plus a default-hidden mobile open button.
• Add an opt-in additional model catalog: a server-owned registry of maintained and exact-ID model selections, projected into new-session and live-switch choosers as a separate group and disabled by default.
• Add a battery-aware host-awake control so a remote host stays reachable through macOS caffeinate or Windows power requests down to a configured battery reserve. Default off; Linux remains unsupported.
• Add server-owned per-host identity markers: an opt-in emoji shown beside headers and in browser-tab titles so remote tabs identify their server.
• Add server-backed browser settings backup with Save and Load controls that move an allowlisted set of browser-local preferences through one server-stored snapshot, omitting credentials, identity, drafts, and cache contents.
• Add a themed tooltip layer with a standard delay, pointer-rest timing, warm adjacency scanning, keyboard association, and secondary-click copy/enlarge. Browser-native tooltips remain the default and stay selectable.
• Show provider child sessions nested under their canonical parent in the Agents page and session lists, covering Claude parent-scoped child transcripts and Codex spawn_agent child rollouts.
• Add a keyboard-open mobile composer action row with large delivery targets, inline Project Queue and Steer slots, and a More panel for the remaining toolbar controls.
• Add a Project Queue new-session action behind its own default-off Toolbar setting, distinguished from the current-session action by a darker violet and a prominent + badge, and share Copy, Edit, Steer now, and Cancel across live queued rows.

• Refresh provider compatibility: Claude Agent SDK 0.3.220 with the Claude Code marker at 2.1.220 and Opus 5 on the stable family alias, Codex app-server 0.145.0, Pi 0.81.1 agent_settled turn boundaries (version-gated so 0.79.9 through 0.80.3 retain agent_end), and Grok ACP model discovery with question and plan-exit bridging.
• Queue live effort changes until turn completion instead of restarting the provider process mid-turn.
• Serve Inbox refresh, resolver-only routes, and heartbeat discovery from bounded session summaries rather than full transcript scans.
• Copy rendered Markdown and Σ previews as semantic HTML without presentation styles, retaining table structure and MathML, and keep text selections through Edit diff expansion.
• Render uniform JSONL and TOON command output as real tables instead of fenced JSON blobs.
• Recognize bracketed \( \) and \[ \] LaTeX delimiters in Σ rendering.
• Refactor transcript projection into a browser-free portable transcript compiler with separate cache, semantic-folding, and web-adapter layers, with no change to projection output or diagnostics.
• Raise the declared Node runtime floor to 20.12.

• Verify provider shutdown before unregistering a killed agent, escalate Codex process groups through SIGKILL, and exempt explicitly killed and archived sessions from heartbeat auto-resume so they cannot be resurrected.
• Reset provider retries when switching models so a held retry on the old model no longer blocks sends on the replacement.
• Merge provisional session IDs on canonical remap so a just-created session cannot appear twice.
• Keep accepted steer messages visible through reconnect, and preserve Codex patient queue entries across a server restart.
• Stop relay login from redirecting to an offline host after signing in to a different one, and keep cached pages readable after a remote disconnect instead of replacing them with a non-dismissible error.
• Title Claude slash-command session openers from the first non-meta user turn instead of the provider's local-command caveat.
• Keep touch taps from opening or stranding hover-only tooltips and session previews.

• Add bounded active transcript-window trimming to reduce long-session memory and rendering cost while preserving search, navigation, and hidden-content awareness.
• Render Codex web.run browsing and compound exploration output as structured transcript tool rows.
• Add Codex user-turn provenance tracking and audit tooling so streamed and persisted transcripts resolve user turns consistently.

• Normalize Codex code-mode shell/run/wait rows, retries, failures, exit/runtime metadata, output previews, and shell auto-expand behavior.
• Improve session freshness, transcript context identity stability, and summary cache rebuild behavior to reduce avoidable client churn.
• Choose the newest available Codex CLI during autodetection and enumerate all Unix PATH candidates.

• Surface terminal provider turn failures and handle Codex retry/process-failure payloads.
• Link shell polls to their command, fold waits into a single row, and hide info-free empty polls.
• Fix session info modal scrolling and hide unavailable Codex browser-skill UI.

• Render Codex code-mode command/tool rows through the shared display-action pipeline, including compact command details for persisted and streamed transcripts.
• Add file-link actions for starting new sessions from referenced files.
• Add an Agents-page kill action for live provider cards.

• Refresh Codex CLI/app-server compatibility through 0.144.1, prefer GPT-5.6 Sol by default, and add compact Sol/Terra/Luna model glyphs. Upgrade claude-agent-sdk and Claude Code compatibility through 0.3.205 / 2.1.205.
• Disable off-screen transcript rendering by default while keeping it configurable, and keep compact-history turn tails inside the requested scope.
• Stream thinking outlines incrementally and render Claude local-command rows.
• Improve long-transcript rendering cost, search-preview hover stability, and sidebar/session feed rendering by reducing avoidable client updates.

• Fix Codex titles polluted by injected plugin context and hide plugin-prefixed startup instructions from visible transcripts.
• Cancel unacted steering sends and clear interrupted pending approvals.
• Unlock notification-type toggles without a reload and scope them under push notification settings.
• Keep filtered bulk action selection limited to the filtered session set.
• Skip unconfigured remote-client deploy uploads.

• Project Queue: durable, server-owned project queues for follow-up work that should wait until every session in a project is idle. The release includes Projects-page management, edit/cancel/retry/move-to-top actions, recovered queue visibility, sidebar and inbox badges, optional composer and new-session entry points, and Project Queue delivery settings.
• Source Control actions for manual remote checks, safe fast-forward pulls, branch pushes/publishing, diverged-branch guidance, recent commits, and a wide-screen split diff preview.
• Durable and configurable session recaps, generated session titles, fork-after-summary flows, and session hover cards with recent agent context.
• Speech input additions for dedicated relay streaming, browser microphone selection, direct xAI batch/streaming STT, local Whisper/Parakeet/NeMo backends, warm-mic handoff, Smart Turn controls, and inline cancellable transcription chips.
• OpenCode 1.17.9 support for direct database transcript reads, resumable ses_* sessions, durable thinking/tool rendering, image input, permission prompts, graceful interrupts, and reasoning-effort model variants.
• Codex spawn_agent subagent rendering, native compaction controls, stopped session slash commands, Windows Desktop CLI detection, and richer Codex summary/index handling.
• Pi provider live RPC subprocess support and canonical tool rendering.
• Environment settings for startup variables and active listen-address display.
• File access controls (Settings → File access) to scope which local folders the HTTP file viewer may read: project folders, uploads, temp, home, and a custom list. The same allow-set is now enforced by both the media routes and the project-files route. ALLOWED_FILE_PATHS (alias for ALLOWED_IMAGE_PATHS) pins it from the environment.
• Approval audit log settings and audit log rotation.
• Inactivity push notifications for sessions and project queues that need attention.

• Upgrade claude-agent-sdk to 0.3.199 and refresh Claude Code compatibility through 2.1.199.
• Refresh Codex CLI/app-server compatibility through 0.142.4 and report yep-anywhere as the Codex originator.
• Canonicalize startup environment variables to YEP_* names with legacy migration for existing settings.
• Move session collection/detail state, inbox/sidebar/project feeds, and remote activity streams onto retained/source-runtime-backed stores for faster restores and fewer redundant requests.
• Isolate summary parsing in worker threads, stream Claude/Codex summaries, and reduce Codex scanner/index memory churn.
• Compress API and public-share API responses with gzip/deflate.
• Capability-gate Project Queue, enhanced Source Control, and hosted remote compatibility surfaces so newer hosted clients degrade cleanly against older servers.
• Refine toolbar visibility/priority controls, Message Delivery settings, immediate settings undo, transcript selection controls, and mobile/narrow layouts.
• Breaking (secure-by-default): the project-files HTTP route no longer serves arbitrary absolute/~ paths. Relative in-project paths are unchanged, but absolute paths outside projects/uploads/temp are denied until the folder is added under Settings → File access (or via ALLOWED_FILE_PATHS). Enable "Home folder" to restore reading under your home directory.
• Windows default temp allow-list now resolves through os.tmpdir() (%LOCALAPPDATA%\Temp) instead of a hardcoded C:\tmp.

• Preserve and recover session delivery queues across safe restart, server restart, and browser reconnect; avoid bursting queued messages into one joined turn; include late-delivered Claude queue entries during incremental fetch.
• Stabilize secure reconnect/auth recovery, relay login state, hosted remote update notices, reload banner dismissal/restart actions, and safe-reload confirmations.
• Fix Codex durable/stream identity alignment, transcript-cache duplicates, zstd rollout handling, Windows read normalization, Bash exit-code replay, and targeted session-index invalidation.
• Improve Windows project/path identity, URL-style Windows file paths, file access bridge tests, and portable server tests.
• Stabilize session scroll restoration, cached return-to-session behavior, transcript selection, toolbar overflow, rendered markdown DOM identity, and long-session restore/loading progress.
• Fix file viewer/share warnings, image preview behavior, public share status retention, uploaded filename normalization, source-control project context, and no-output tool rows.
• Close parser workers on server reload and harden disk-full stream handling.

• File viewer and project-file reads are now scoped by the user-controlled allow-list described above.
• Add approval audit log configuration and rotation.
• Serialize secure reconnect recovery to avoid overlapping recovery attempts.
• Keep STT-specific xAI credentials scoped to speech and scrub general XAI_API_KEY from child agent environments unless explicitly opted in for Grok Build.

• Shared file viewer and Markdown media handling across session, public share, and remote file links, including line-range views.
• Output appearance controls for fixed-width rendering, typography, and Grep preview line counts.
• Session search, explicit thinking controls, and broader localized client UI coverage for German, Spanish, French, Japanese, and Chinese.
• OpenCode session recovery from CLI exports and vLLM response rendering.

• Move speech options into the microphone menu and share thinking effort controls across composer surfaces.
• Tighten transcript, tool-row, sidebar, settings, and mobile spacing and typography.
• Default heartbeat turns to continue and bind queued "when done" prompts to Ctrl+Enter.
• Document relay protocol grace policy and local CI gating expectations.

• Clear stale relay resume sessions before login.
• Reap idle Claude sessions so closed tabs do not leave provider sessions alive indefinitely.
• Fix public share copy, edit previews, file media, and Read links.
• Stabilize thinking transcript rendering and Grep summary previews.
• Improve OpenCode provider session recovery, provider resolution, and session reading.

• Add relay SRP v2-to-v3 grace handling and hosted-client compatibility warnings for stronger resume verification.

• Stable tool preview rendering controls, enabled by default for a steadier transcript layout.
• Inline media display controls for generated and local media previews.
• Shared local-resource link handling for project-root files and remote/relay sessions.

• Gate Codex live deltas on active subscriber demand and respect the streaming preference for Codex delta rendering.
• Stop persisting per-session permission mode locally.
• Apply collapsed-by-default inline media behavior to images and videos.

• Fix file preview modal scrolling and project-root local file opening.
• Preserve hosted relay paths when opening local-resource links in a new tab.
• Fix relay agent session links and remote project redirect routing.
• Stabilize transcript rendering while appending streamed content.
• Stabilize Codex update prompt checks in CI.
• Use the root package version when locally building npm bundles without CI tag metadata.

• Public read-only session sharing with share controls, viewer counts, relay URL handling, and origin-aware share gating.
• Server-routed speech input backends, including browser-native, Deepgram, local Whisper, and xAI STT options with per-session controls.
• Grok Build ACP provider support, prompt suggestions, session recaps, heartbeat turns, Codex /btw asides, and provider effort controls.
• Attachment previews, image sizing hints, local media/file previews, generated media rendering, and project-local attachment storage.
• Rich transcript rendering for KaTeX math, ANSI SGR output, expandable tool rows, transcript follow controls, reverse search, and markdown copy.
• Session UI customization for toolbar buttons, tab title activity, content width, sidebar sections, floating session actions, and provider/model labels.
• Remote compatibility notices and Codex CLI update checks in provider settings.

• Upgrade claude-agent-sdk to 0.3.158.
• Refresh Codex protocol compatibility through the 0.135.0 CLI target.
• Move the client session lifecycle, replay, and catch-up paths onto more explicit stores to reduce stale sidebar and transcript state.
• Reduce streaming, replay, upload, and long-session render churn.
• Update the Biome toolchain and GitHub Actions workflows for current Node runtimes.

• Stabilize Codex steering, interrupts, queued messages, reconnect merging, session discovery, and long-session refresh behavior.
• Improve mixed-provider session resolution, handoff, cloning, project scoping, and provider catalog cache behavior.
• Fix Windows path handling, temp path media links, spawn/reload behavior, and local secret ACL checks.
• Fix mobile and narrow-layout issues across the composer, session toolbar, sidebar, filters, slash menu, and model selection UI.
• Fix notification, lifecycle, webhook, settings save, and public share status edge cases.

• Harden local file, local image, upload, static asset, and public share path containment.
• Add relay origin allowlist enforcement, safer relay admission checks, approval audit logging, and unsafe Unicode visibility in approval prompts.

• Upgrade claude-agent-sdk to 0.2.111 (adds Opus 4.7 support)

• Preserve provider on session restarts

• Prefer persisted provider for session resume and agents

• Core workspace setup script

• Fix clearing empty server settings
• Keep idle Claude sessions owned while alive
• Fix Codex sessions not appearing in All Sessions on Windows
• Fix Windows spawn ENOENT and EINVAL in scripts
• Fix notification read-state persistence on restart
• Fix Windows project path deduplication

• Lifecycle webhook support
• ToolSearch schema validation
• Claude metadata session entry handling
• Relay host upsert on auto-resume for reliable reconnect

• Update claude-agent-sdk to 0.2.90
• Update Claude model selection options
• Move persist-remote-sessions toggle to Remote Access settings
• Align Codex session schema with upstream types

• Avoid new-session remounts on project refresh
• Allow local image access to managed uploads
• Fix relay host ID race condition during session refresh
• Fix modal title overflow on long names

• Local media preview modal for file paths in markdown
• Prefer recent project for new sessions

• Centralized cross-provider session listing
• Session summary caching for Gemini and Codex providers
• Safe HOME guards for dev and test entrypoints

• Fix streaming edit patch filenames
• Improve PTY and Codex PTY tool rendering
• Fix mixed-provider session resolution and titles
• Preserve Claude sibling ordering on reload
• Stabilize session replay and queued prompt rendering
• Detect Codex CLI from desktop app sandbox-bin location

• New session defaults: save preferred provider, model, and permission mode
• Local image viewing for Codex imageView events
• Scoped session indexing for shared providers

• Resolve allowed image paths for macOS /tmp symlink
• Deduplicate sessions on Windows caused by mixed-slash cwds
• Improve provider process handling

• Widen tool_result content type for broader SDK compatibility
• Stabilize Claude persisted session rendering
• Guard localStorage calls in i18n module
• Prevent false unread notifications from late JSONL writes
• Exclude progress messages from DAG to prevent dead branches

• Client-side i18n with lazy-loaded locale bundles (English, Chinese, Spanish, French, German, Japanese)
• Language selector in Appearance settings

• Pin @biomejs/biome to 1.9.4 to fix CI (pnpm resolved ^1.9.4 to breaking 2.x)

• Provider filtering and voice input toggle via environment variables
• Dynamic model list and Claude profile support
• Age filter and bulk archive for filtered sessions
• Approval panel truncation with view-details modal for large tool calls

• Update Claude Agent SDK to 0.2.77

• Prevent NODE_ENV=production from leaking into Claude Code child processes (#41)

• Update Claude Agent SDK to 0.2.76 with runtime context window detection
• Support SDK 0.2.76+ Agent tool format and subagents directory
• Version-aware device bridge updates
• Restore iOS simulator home button

• iOS simulator device bridge support with HID input
• Improved iOS simulator bridge preflight error messages

• Reduce routine update checks

• Relay telemetry and stats dashboard
• Relay server compatibility reporting
• Fetch version and bridge version from update server instead of npm registry/hardcoding

• Fix inbox race condition
• Prevent Enter key from triggering send during IME composition
• Relax relay resume proof skew tolerance

• /model slash command for mid-session model switching
• Codex correlation debug logging

• Improve replay deduplication
• Preserve timestamps on stream messages
• Improve session reconnect merging

• Fix Codex session titles on agents page
• Fix Codex session cloning in mixed projects
• Fix Codex session clone visibility
• Fix Codex session discovery defaults
• Reduce Codex debug logging overhead

• ModelInfoService for accurate context window lookups
• PDF file previews in Read tool renderer
• Server timestamps to streamed SDK messages for replay dedup
• Stream vs persisted render parity harness
• Slash commands attached to session REST response

• Keep pending Bash rows collapsed
• Improve image previews and Bash row summaries
• Normalize tool rendering (heredoc writes, bash, edit patches) across stream and JSONL
• Surface rate limit exhaustion as error messages
• Treat rate-limit updates as telemetry only
• Log Codex messages to sdk-raw

• Filter replayed stream messages using persisted timestamp watermark
• Fix getResultSummary crash for PDF Read results
• Fix live Codex edit patch previews for file changes
• Persist provider to session metadata for correct resume
• Detect claude-ollama sessions from model name in JSONL
• Skip Ollama detection ping when URL is explicitly configured

• Android device bridge with WebRTC streaming and MediaCodec capture
• ChromeOS device transport and streaming with host aliases
• Ollama local model provider with customizable system prompt
• Adaptive bitrate and quality controls for device streaming
• Immersive keyboard mode for Android device input
• On-demand download for device bridge sidecar binary
• CI pipeline for device bridge sidecar binaries
• Emulator streaming E2E tests and validation scripts

• Fix Windows session spawning across all providers
• Fix session resume losing provider for non-Claude models
• Fix crash when tool result content is an array instead of string
• Stabilize Android stream startup and soak reliability
• Fix keyboard input mapping for emulator and Android streams
• Fix WebRTC video stream stalling after a few seconds
• Fix sidecar crash on WebSocket disconnect
• Fix emulator bridge cascading restart loop

• Rename Emulator to Devices in sidebar and routes
• Refactor bridge to unified device interface with Android and ChromeOS transports

• Draft badge in session sidebar, list, and inbox

• Fix Codex sessions not appearing due to truncated first-line read (#23)
• Fix duplicate message display when queuing deferred messages
• Fix stale detection killing busy processes and orphaning CLI sessions

• Configurable tab size setting for code and diff display
• Codex scanner diagnostics for troubleshooting session discovery

• Fix Windows session discovery
• Fix Gemini session discovery for newer CLI versions
• Fix Codex/Gemini session discovery when ~/.claude/projects is missing

• Update Gemini model list for v0.30.0 CLI
• Optimize Gemini session loading with generalized session index
• Extract shared JSONL/BOM utilities to reduce duplication

• Session cloning support for Codex sessions
• Show session creation date in Session Info panel

• Fix Codex sessions failing with 'minimal' reasoning effort
• Fix broken image paths in README

• 3-way thinking toggle: off / auto / on (model decides when to think in auto mode)

• Fix thinking "on" mode for Opus 4.6+ and wait for CLI exit on abort
• Reconnect session stream after thinking-mode process restart
• Fix context usage percentage being too low after compaction
• Fix DAG not bridging across compaction boundaries with broken logicalParentUuid
• Fix source control page issues

• Source Control page with git working tree status
• File diff viewer: click any file to see syntax-highlighted diff with full context toggle and markdown preview
• Session sharing via Cloudflare Worker + R2

• Fix denied subagent showing spinner instead of error state
• Fix remote client redirect loop on git-status page
• Fix DAG selecting stale pre-compaction branch over post-compaction one

• HTTPS self-signed cert support (--https-self-signed flag and HTTPS_SELF_SIGNED env var)
• Codex shell tool rendering for grep/read workflows

• Fix HTTP LAN access: randomUUID fallback for insecure contexts and non-secure cookie handling
• Lazy-load tssrp6a to fix crash on HTTP LAN access (insecure context)
• Auth disable now clears credentials and simplifies enable flow

• File logging and SDK message logging default to off (opt-in)
• Replace LOG_TO_CONSOLE with LOG_PRETTY for clearer semantics

• Session cache with phased optimizations: cached scanner results, batched stats, cached stats endpoint with invalidation
• Cross-process locking and atomic writes for session index files
• Improved pending tool render and settings copy

• Fix localhost websocket auth policy when remote access is enabled
• Fix send racing ahead of in-flight file uploads

• Harden markdown rendering against XSS
• Harden SSH host handling for remote executors
• Harden auth enable flow and add secure recovery path
• Patch vulnerable dependencies (bn.js)
• Enforce 0600 permissions on sensitive data files
• Add SRP handshake rate limiting and timeout guards
• Harden session resume replay defenses for untrusted relays
• Harden relay replay protection for SRP sessions

• Tauri 2 desktop app scaffold with setup wizard
• Tauri 2 mobile app scaffold with Android support
• Global agent instructions setting for cross-project context
• Permission rules for session bash command filtering
• Legacy relay protocol compatibility for old servers

• Guard SecureConnection send when WebSocket global is unavailable
• Stop reconnect loop on intentional remote disconnect
• Fix stale reconnect race and reduce reconnect noise
• Fix localhost cookie-auth websocket regression
• Fix WebSocket SRP auth-state coupling and regressions
• Fix server crash when spawning sessions with foreign project paths
• Fix streamed Codex Edit patch augmentation parity
• Fix Linux AppImage builds (patchelf corruption, native deps, signing)

• Default remote sessions to memory with dev persistence toggle
• Refactor websocket transport into auth, routing, and handler modules
• Improve server update modal copy and layout
• Remove browser control module

• Update README with current Codex support status (full diffs, approvals, streaming)

• Fix Codex provider labeling (CLI, not Desktop)

• Codex CLI integration with app-server approvals and protocol workflow
• Codex session launch metadata, originator override, and steering improvements
• Focused session-watch subscriptions for session pages
• Server-side highlighted diff HTML for parsed raw patches
• Browser control module for headless browser automation

• Relay navigation dropping machine name from URL
• Codex Bash error inference for exit code output
• Codex persisted apply_patch diff rendering
• Codex session context and stream reliability

• Collapse injected session setup prompts in transcript
• Normalize update_plan and write_stdin tool events
• Improve Codex persisted session rendering parity
• Show Codex provider errors in session UI

• --open flag now opens the Windows browser when running under WSL

• --open CLI flag to open the dashboard in the default browser on startup

• Fix relay connect URL dropping username query parameter during redirect

• Fix page crash on LAN IPs due to eager tssrp6a loading
• Fall back to any project for new sessions; replace postinstall symlink with import rewriting

• Windows support: fix project directory detection for Windows drive-letter encoded paths (e.g. c--Users-kaa-project)
• Windows support: fix session index path encoding for backslash separators

• Windows support: replace Unix which with where for CLI detection
• Windows support: accept Windows absolute paths (e.g. C:\Users\...) in project validation
• Windows support: fix path traversal guard and project directory encoding for backslash paths
• Windows support: use os.homedir() instead of process.env.HOME for tilde expansion
• Windows support: fix path separator handling in codex/gemini directory resolution
• Windows support: show PowerShell install command instead of curl/bash

• Relay connection status bar
• Website release process with tag-based deployment

• Sibling tool branches in conversation tree

• Simplify Claude, Codex, and Gemini auth to CLI detection only
• Update claude-agent-sdk to 0.2.29

• CLI setup commands for headless auth configuration
• Relay /online/:username endpoint for status checks
• Multi-host support for remote access
• Switch host button to sidebar
• WebSocket keepalive ping/pong to RelayClientService
• Host offline modal and tool approval click protection
• Error boundary for graceful error handling
• Terminate option to session menu

• Host picker navigation and relay routes session resumption
• Relay login to set currentHostId before connecting
• DAG branch selection to prefer conversation over progress messages
• Session status event field name and auto-retry on dead process
• Sidebar overlay auto-close logic
• SRP auth hanging on unexpected messages
• Relay reconnection error messages for unreachable server
• Mobile reconnection showing stale session status
• Dual sidebar rendering on viewport resize
• Skip API calls on login page to prevent 401 popups
• Various relay host routing and disconnect handling fixes

• Update claude-agent-sdk to 0.2.19
• Rename session status to ownership and clarify agent activity

• Handle 401 auth errors in SSE connections
• Fix session stream reconnection on mobile wake
• Fix relay reconnection to actually reconnect WebSocket

• Connection diagnostics and detailed reconnect logging
• Show event stream connection status in session info modal