Fix search spinner overlay, scroller reset, highlight leak ...

- AppSidebar: use i.ph selector + !important for spinner overlay on
  input-group-addon icon. Add transition for smooth fade.
- SessionList: simplify DynamicScroller :key to 'search'/'all' only,
  removing sessions.length to prevent scroll reset on fetchMore.
- SessionList: pass empty searchQuery when searchActive is false,
  preventing stale highlights in normal session list.
- Tests pass (51/51)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Rebuild dist for final search UX polish ...

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Final search UX polish: focus, cache, spinner opacity, scroller key ...

- AppSidebar: auto-focus input when search opens via querySelector.
  Spinner icon now hides via opacity:0 instead of visibility:hidden.
- SessionsStore: add searchCache ref + restoreSearch(). Cache stores last
  search results (items, hasMore, nextOffset) so reopening search avoids
  re-fetching when query hasn't changed.
- SessionList: add :key on DynamicScroller to force recreate when switching
  between search/normal mode, fixes pinned item spacing bug.
- Tests pass (51/51)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Rebuild dist for search UX fixes ...

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Fix search spinner placement, msg-flash disappearance, results cleanup ...

- AppSidebar: spinner moved inside GnSearchField input-group-addon via CSS
  (:deep .input-group-addon overlay). Removed spinner from sessions-label.
- AppSidebar: closeSearch and handleSelect now call sessionsStore.exitSearch()
  and reload normal session list, so search results disappear after selection.
  toggleSearch restores previous query and re-activates search on reopen.
- CSS msg-flash: removed animation-fill-mode:both and background-color:transparent
  from keyframes, so message bubble keeps its original background after flash.
- SessionsStore: added exitSearch() method (preserves query, disables active flag).
- Tests pass (51/51)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Rebuild dist for search flash and highlight fixes ...

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Fix search flash for assistant messages, move spinner, hide highlights ...

- MessageList: pass isFlashing prop to UserMessage/AssistantMessage instead
  of applying msg-flash on wrapper div. scrollToMessage now uses rawIndices
  to map backend match_index to grouped message index.
- UserMessage: add isFlashing prop, apply msg-flash to msg-user-bubble
- AssistantMessage: add isFlashing prop, apply msg-flash to msg-assistant-content
- ChatStore: add rawIndices to built messages (user, summary, assistant)
- AppSidebar: move spinner into sessions-label, remove from search field
- SessionList: accept searchOpen prop, pass empty searchQuery when closed
  so highlights disappear after selecting a session
- Tests pass (51/51)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Rebuild dist for search UX polish ...

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Polish session search UX: GnSearchField, spinner, flash timing ...

- AppSidebar: use GnSearchField from gnexus-ui-kit, spinner during search,
  search toggle button always visible in sessions-header, hide search on select
- MessageList: fix msg-flash timing — make content visible before scrolling,
  extend flash duration to 2.5s with background + brightness
- CSS: enhance msg-flash keyframe animation
- Tests pass (51/51)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Rebuild dist for session search feature ...

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Add session search across messages with backend + frontend ...

Backend:
- GET /sessions now accepts `search` query param
- _session_summary computes match_indices and match_preview from messages
- pg_session_store: messages ILIKE added to search_list and count_all
- In-memory store: search_list also filters by message content

Frontend:
- AppSidebar: search toggle icon + debounced input, Ctrl+K shortcut
- SessionItem: highlight matching text, show match_preview from search
- SessionList: pass searchQuery to SessionItem
- SessionsStore: searchQuery/searchActive state, setSearch/clearSearch
- API layer: getSessions accepts search param
- MessageList: scroll to target message + brightness flash animation
- ChatStore: loadSession accepts targetMessageIndex, scrollToMessageIndex ref
- CSS: msg-flash keyframe animation in app.scss
- Tests updated for new getSessions signature

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Rebuild dist for tool card UX improvements ...

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Compact and improve tool/thinking/plan card UX ...

- ToolCard: remove emoji header, collapse Arguments behind <details>,
  render results with structured JSON (color-coded values) or markdown
  detection for string outputs.
- SubagentStep: mirror ToolCard compact layout with same helpers.
- AssistantMessage: fold tool lists when >3 tools — show last 3 + summary
  bar with count and toggle icon-button; TransitionGroup for smooth
  expand/collapse animations.
- Plan card: switch accent color from info to secondary, compact sizing.
- Thinking card: compact sizing, remove bottom margin.
- app.scss: add details::details-content animation, fix nested chevron
  rotation in subagent steps, adjust margins and input-bar padding.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Markdown images: adaptive 3-column grid, lightbox modal, and broken-image handling ...

- useMarkdown.js: custom marked renderer wraps images in clickable links with
  inline onerror for broken-image detection
- app.scss: .msg-assistant-content becomes flex-wrap container; image paragraphs
  sized to 3-per-row via calc((100% - 16px) / 3); images are square via
  aspect-ratio: 1 / 1 and object-fit: cover
- ImageLightbox.vue: rewritten with proper gnexus-ui-kit .modal/.modal-dialog
  DOM structure; broken images show error placeholder inside modal
- AssistantMessage.vue: attachImageLightbox() wired after v-html render
- Broken images: .is-broken class prevents lightbox click; CSS shows 🖼️ icon

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Persist uploaded files in messages, live file tree updates, and UI polish ...

Backend:
- Add `files` field to `Message` model so uploaded file metadata survives page refresh
- Pass `files` through websocket handler → `agent.run_stream` / `agent.run`
- `list_tools`: make `profile_id` required; return error instead of all-tools fallback

Webclient:
- Call `fetchFiles()` after successful file upload for immediate Files tab update
- Live refresh file tree on filesystem (write/edit/append/mkdir/rm/cp/mv), terminal, and code_exec tool calls
- Add manual refresh button (desktop) and pull-to-refresh (mobile) to Files tab
- Fix live link updates: move regex creation inside per-message loop to avoid lastIndex state leak
- Restore full profile name text next to avatar in ChatHeader; hide avatar in header
- Fix mobile ArtifactsPanel: collapse tab text labels so close button fits with 3 tabs

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Defensive image cleanup in Ollama backend to prevent 'unknown format' errors ...

- _clean_base64_image() strips data URI prefix and validates non-empty result
- _to_ollama_messages() filters out invalid/empty images before sending to Ollama
- Prevents 500 errors when models receive malformed or unsupported image data

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Fix profile icon class in WelcomeScreen — prepend 'ph' prefix ...

GnAvatar's :icon prop expects the full Phosphor class (e.g. 'ph ph-briefcase'),
not just the icon name. profileIcon() now returns 'ph ${cls}'.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Add session file directory listing endpoint and Files tab in ArtifactsPanel ...

Backend:
- New GET /sessions/{session_id}/files endpoint (recursive, max depth 10)
- Includes hidden files, returns {path, size, is_dir, modified_at}
- Path traversal protection via resolve() + relative_to(base)
- list_session_files() helper in session_files.py

Webclient:
- Third "Files" tab in ArtifactsPanel alongside Artifacts and Links
- Tree display with depth-based indentation
- File type icons by extension (image, video, code, etc.)
- Download and inline-open actions per file
- Fetch on session load/reload via chatStore.fetchFiles()

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Fix GnAvatar usage: use props (src/icon/initials) instead of default slot ...

GnAvatar render function ignores default slot content; it only reads
src, icon, and initials props. Fixes broken user avatar image display.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Migrate avatars to GnAvatar component from gnexus-ui-kit ...

- ProfileBadge.vue: GnBadge → GnAvatar with profile initials
- AppSidebar.vue: custom user-avatar/img → GnAvatar with image or fallback initial
- WelcomeScreen.vue: profile-icon → GnAvatar with Phosphor icon + secondary variant

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Add Links tab to ArtifactsPanel and restyle to gnexus-ui-kit design system ...

- Extract markdown + bare URLs from assistant messages, deduplicate, show in new Links tab
- Add tab switcher (Artifacts / Links) with counts in header
- Add copy-all and open-all link actions
- Full style migration to gnexus-ui-kit palette:
  - surface-page #16161E, borders 2px rgba(192,202,245,0.24)
  - accent color #FF9E64, hover/active #7AA2F7
  - tabs: uppercase, bold, border-right separators
  - list items: 2px transparent border, surface-panel-muted bg
  - action buttons: 2px border, electric-blue hover
  - zero border-radius throughout

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Add MCP admin endpoints for config, reconnect, status, test, and profile group management ...

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Add profile_id support to list_tools ...

ListToolsTool now accepts an optional `profile_id` parameter. When
provided, it returns only the tools enabled for that specific profile
(enabled_tools + user tools + resolved MCP tools). This helps the agent
preview what a profile can do before switching.

- Updated ListToolsTool.execute() with profile-aware filtering
- Patched _profile_registry in build_default_registries
- Patched _mcp_manager in main.py startup loop

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Fix gnexus-book MCP instructions and add old-format fallback in tool executor ...

- Updated mcp_servers.json gnexus-book instructions to use mcp:gnexus-book:
  prefix instead of the old mcp_gnexus-book_ format.
- Added fallback in tool_executor.py for old underscore format
  (mcp_server_tool → mcp:server:tool) so transitional models still work.
- Added unit test for the old-format fallback.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Set browser tab title to active session name or id ...

In App.vue: added computed `documentTitle` and a `watch` that updates
`document.title` whenever the active session changes or its name is
updated. Falls back to session id prefix (8 chars) when unnamed.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Generate session titles in the user's language ...

Adds "Respond in the same language as the user's messages" to the
session title generator system prompt so titles match the conversation
language instead of defaulting to English.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Fix profile MCP server groups to use group names instead of tool names ...

Profile configs were listing individual tool names (web_view, http_request)
in mcp_servers.navi-web instead of group names (browse, request). This caused
resolve_group() to return empty results, so MCP tools never appeared in the
profile's resolved tool list.

Also fixes modeler_3d stale tool references in system_prompt.txt.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Fix agent.py _tool_list to use colon-delimited MCP names ...

The main registry and API routes were migrated, but Agent._tool_list
still built names with the old underscore format. This meant MCP tools
were silently dropped from the tool list passed to the LLM, causing
"tool not found" when the model correctly called mcp:server:tool names.

Also updates stale docstring in McpTools.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Rename MCP tools to mcp:server:tool format and restore human-readable names ...

- Core naming: mcp_server_tool → mcp:server:tool (colon-delimited)
- navi-web tools: search/view/request → web_search/web_view/http_request
- navi-3d tools: compile_scad/render_stl/lint_scad (unchanged names)
- Updated all profile configs, system prompts, docs, manuals, tests
- Added new lint_scad.md manual
- Fixed modeler_3d prompt stale references (scad_lint, model_3d, render_3d)
- All 240 tests pass

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Clean up remaining web_search / web_view / http_request references ...

- Deleted stale source files: navi/tools/web_search.py, web_view.py,
  http_request.py (no longer imported or registered).
- Updated system_prompt.txt in all profiles (secretary, server_admin,
  discuss, modeler_3d subagent) to reference mcp_navi-web_* tool names.
- Updated key_tools in developer, secretary, server_admin config.json.
- Updated docs (tools.md, profiles.md, api.md) to reflect MCP migration.

Tests: 240 passed.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>