0.4.15 — 2026-06-26

Chat history tidy-up + collapsible sidebars everywhere. Trim the chat history
list, move the agent-status indicator back into the navbar user menu (where it
lived in 0.3.0), and bring the Docs hide/expand sidebar control to every other
tab — with its floating expand button repositioned, restyled, and dark-mode
aware.

Upgrade notes for admins

• None. Frontend-only change, no DB migrations or env vars. Rebuild the
  frontend image (docker compose up --build).

Added

• Collapse / expand sidebar on the Chat, Reports, Dashboards and Tethers
  tabs, matching Docs: an fa-angles-left button in the sidebar header hides the
  panel, and a floating fa-angles-right button restores it. Each page tracks
  its own sidebarOpen state and reuses the shared .docs-sidebar.collapsed /
  .docs-toggle-btn styling.
• Active-agent status in the navbar user menu — status dot + name between the
  username and the theme toggle, using the existing .user-dropdown__agent /
  .agent-status-dot styles, polling getAgentStatus every 20s.

Changed

• frontend/src/components/Navbar.tsx — added the agent-status row to the
  user dropdown.
• frontend/src/chat/ChatPage.tsx — removed the .chat-agent sidebar status
  row and the per-session delete button (and the now-unused deleteChatSession
  mutation / import); the header now groups the new-chat and collapse buttons in
  a .sidebar-header-actions row. getAgentStatus is still queried locally for
  the empty-state copy.
• frontend/src/reports/ReportsPage.tsx,
  frontend/src/dashboards/DashboardsPage.tsx,
  frontend/src/tethers/TethersPage.tsx — added the collapse button + the
  floating expand button.
• frontend/src/styles/app.css — dropped the orphaned .chat-agent,
  .chat-dot and .chat-session-del rules, and the right-padding that reserved
  space for the delete button on .chat-session-name.

Removed

• Delete button on chat history items — sessions can no longer be deleted
  from the sidebar.

Fixed

• Expand button sat ~60px too low. .docs-toggle-btn is absolutely
  positioned inside the layout (.docs-layout / .chat-layout), which already
  starts below the sticky navbar, but its top added var(--navbar-h) a second
  time. Now offset from the layout top (top: 12px), so it lands by the
  collapsed header row.
• Expand button looked flat / wrong in dark mode. Added a subtle drop
  shadow, a cyan hover state, the -webkit- backdrop-filter prefix, and a
  [data-theme="dark"] override, so it reads as a real floating control on every
  tab and theme.

Notes

• No VERSION bump (stays 0.4.0), consistent with the other 0.4.x
  fast-follow notes.
• Verified: npm run build --prefix frontend (tsc strict + vite) is clean.