Changeset 0.9.3 (#53)

CHANGELOG.md

@@ -2,6 +2,85 @@
 
 All notable changes to Chat Switchboard.
 
+## [0.9.3] — 2026-02-23
+
+### Changed
+- **Code blocks: button-driven collapse** — Replaced `<details>` wrapper with
+  inline collapse/expand toggle button in the code toolbar. Auto-collapses at
+  >15 lines with a fade mask; toggle available on all blocks >5 lines. User
+  can always expand/collapse regardless of threshold. Smooth CSS transition
+  instead of native `<details>` jump.
+- **Thinking blocks: always visible** — Thinking blocks are always rendered in
+  the DOM regardless of the `showThinking` setting. The setting now controls
+  whether blocks start expanded (`<details open>`) or collapsed. User can
+  always click to toggle. Setting label updated to "Auto-expand thinking blocks".
+
+### Added
+- **Admin default model** — New `default_model` policy in Admin → Settings.
+  Dropdown populated from enabled models. When a user has no saved selection
+  (fresh login, cleared browser) or their saved model is no longer available,
+  the admin default is used before falling back to first visible. Resolution
+  chain: `localStorage → admin default → first visible`.
+- **Reasoning/thinking support for OpenAI-compatible providers** — Models that
+  send `reasoning_content` in stream deltas (Grok, DeepSeek, etc.) now have
+  thinking blocks streamed live and persisted as `<think>` tags. Renders as
+  collapsible thinking blocks in both streaming and history views.
+- **Favicon animation during generation** — Browser tab favicon pulses with
+  cascading dot opacity animation while a completion is in progress, restoring
+  to the static favicon when done.
+- **Tool calls in message history** — Tool call metadata (name, arguments,
+  result, error status) is now persisted alongside assistant messages in the
+  database. History view renders tool calls as collapsed `<details>` blocks
+  showing "🔧 tool_name → done" with expandable input/output JSON.
+- **Notes tool: "View note" link** — When a notes tool (`note_create`,
+  `note_update`, etc.) completes, a "📝 View note" button appears in both
+  the live streaming tool indicator and the history tool call block. Clicking
+  opens the Notes panel and navigates directly to the note.
+- **Notes panel: Copy button** — "Copy" button added to note read mode,
+  copies title + content as markdown to clipboard.
+- **Brand hover: jitter-free crossfade** — Sidebar brand logo→collapse icon
+  swap uses opacity crossfade instead of `display: none` toggle, eliminating
+  layout reflow jitter on hover.
+
+### Fixed
+- **Model selector shows unavailable model** — Selector restoration searched
+  all models including user-hidden ones. Saved selection (localStorage) for a
+  hidden model like Claude Opus would re-select it on every page load even when
+  only Grok was visible. Resolution now filters to visible models only.
+- **Refresh toast shows wrong count** — "Loaded 33 models" counted all models
+  including hidden; now shows only visible count ("Loaded 1 model").
+- **Tool calls vanish after completion** — Live streaming tool indicators
+  disappeared when `reloadActivePath()` rebuilt messages from DB. Fixed: the
+  `getActivePath` query now includes `tool_calls` column, and `PathMessage`
+  carries the data through to the frontend renderer.
+- **Tool result "undefined results" text** — Operator precedence bug in tool
+  result summary parser caused `undefined results` to display for note_create.
+  Fixed summary logic to properly branch on title vs count.
+- **Regenerate streams at wrong position** — Regen'd response appeared below
+  the full conversation (appended at bottom) then snapped to correct position
+  after completion. Fixed: display is now truncated to the parent message
+  before streaming starts, so the new response streams in-place as a clean
+  branch. Backend context was already correct (excludes old response).
+- **Regenerate loses tools, reasoning, and tool execution** — Regen handler
+  was a stripped-down copy of the completion handler missing tool definitions,
+  tool execution loop, reasoning_content forwarding, and tool_calls persistence.
+  Model lost access to note tools on regen and fell back to generic capabilities.
+  Refactored: extracted `streamWithToolLoop()` into `stream_loop.go` as the
+  single canonical streaming implementation. Both `streamCompletion` (normal
+  chat) and `Regenerate` now call the shared function — only persistence
+  differs. Future streaming features (new event types, tool capabilities)
+  automatically apply to all code paths.
+- **OpenRouter free models crash** — Free models with nil pricing caused
+  `pq: invalid input syntax for type json` on catalog sync. Nil pricing now
+  routes through `ToJSON()` producing `"{}"` instead of nil `[]byte`.
+- **API key appears unsaved** — `ListGlobalConfigs` returned raw
+  `ProviderConfig` structs where `APIKeyEnc` is `json:"-"` (never serialized),
+  so `has_key` was always `undefined`. Now returns computed `has_key` field.
+- **Case-insensitive usernames** — Login, registration, and all user lookups
+  use `LOWER()` in SQL. All user creation paths normalize to lowercase.
+  New migration `002_ci_username.sql` adds `LOWER()` unique indexes and
+  normalizes existing rows.
+
 ## [0.9.2] — 2026-02-23
 
 ### Added