v0.58.0

Added

• Settings has five tabs and an Overview. The single sixteen-card
  scroll became Overview / Agent / Panel / Unity integration / Connection,
  one tab body at a time, with the tab you left remembered for the editor
  session (the header gear reopens it). The new Overview tab holds no
  control: a Setup card (agent found?, signed in?, Unity operations on?)
  and an "In effect now" card (permission mode, auto-approve level,
  default model, language, and a red line whenever every permission check
  is being skipped), each row with a "Change" link to the setting's one
  home; the setup rows offer the obvious next move ("Set up", "Sign in",
  "Enable") when a step is not done. The About card's version pills and
  links are the Overview's footer. Phase 1 of
  docs/design-notes/2026-09-17-settings-redesign-plan.md.
• One "go to this setting" entry point. AgentPanelWindow.ShowSettings (tab, cardId) selects the tab, opens a collapsed card and scrolls to it;
  the first-run "Log in" button, the Overview links and the UapOps card's
  auto-approve cross-reference (now a link instead of a sentence) all use
  it.
• Settings search. A search field at the right of the Settings title:
  typing hides the tab strip and shows, from every tab at once, only the
  rows whose label, hint, tooltip, button caption or current value contains
  the text (case-insensitive), each surviving card headed by a
  "Tab > Card" crumb; a hit inside a collapsed card or foldout opens it.
  Clearing the field (or Esc) puts the tab you were on back exactly as it
  was. The Overview tab is not searched, since it only mirrors other
  settings. Phase 3 of docs/design-notes/2026-09-17-settings-redesign-plan.md.
• A status pill on every Settings card header. The one-word state a
  card used to bury in a line at the bottom of its body now sits at the
  right end of its header, readable with the card collapsed: Unity
  operations "Port N" / "Off" / "Not running", Agent "Signed in" /
  "Not signed in" / "Not found", Appearance the detected CJK font, Model
  the model a new session will run, Custom instructions "Not set" /
  "N lines", Quick actions and Console errors their counts, Extension
  profiles "N detected", uLoop and the Unity plugin "Installed" / "Not
  installed", the danger zone "All off" / "Skipping checks". Tone (green
  / amber / neutral) only tints; the text always says the state. Phase 2
  of docs/design-notes/2026-09-17-settings-redesign-plan.md.

Changed

• The danger zone is its own collapsed card at the end of the Agent
  tab, no longer the third row of the Conversation card, and it only
  takes the warning surface while "Skip ALL permission checks" is ON.
• At 300px the tab strip shows short labels ("Unity", "Connect").
• Fewer always-visible hint lines in Settings. Twenty-two lines that
  restated a label, repeated what the reconnect banner says, or described
  one of twelve module switches moved onto the control's tooltip (a "?"
  mark when long): the per-module descriptions, the Unity operations and
  Extension profiles opening paragraphs, the notifications focus caveat,
  the web fetch / search field notes, the staging-folder line, the
  disallowed-tools "one per line", the subagent-card caveat and the agent
  picker's "applies at the next reconnect". What stays visible is the one
  line you need to choose (auto-approve scope, validation gate, the two
  auto-continue switches, sign-in method, Ctrl+Enter).
• The Unity operations, uLoop and Appearance cards no longer end with a
  status line; the header pill carries it.