Give the mouse back, retire the follow controls, update Claude per session

Three things the terminal was getting wrong.

**A program that grabs the mouse and dies used to freeze the tab.** A TUI sets
DECSET ?1000/?1002/?1003; if it exits without resetting them, xterm keeps
routing clicks, drags and — under ?1003 — every pointer *move* to the PTY.
Text selection dies and escape bytes flood the prompt. The only exit was
closing the tab. `TerminalView` now reconciles a flag against
`term.modes.mouseTrackingMode` in the `term.write()` callback — the mode only
changes because the container printed a sequence, so one check per write
catches every transition with no polling — and `Ctrl+Shift+X` or a status-bar
button writes the resets back through `term.write`, never `sendInput`: the
reset belongs to xterm's parser, and a still-live TUI told about it would just
re-grab on its next repaint.

The control is in the status bar deliberately. Mouse tracking is the *normal*
state of htop, vim, lazygit and Claude Code, so a badge over the terminal
would be on screen for the whole life of those programs and would swallow
clicks aimed at their own top-right corner. `macOptionClickForcesSelection` is
also on now: xterm's force-select is Shift everywhere except macOS, where it
is Option and is gated behind that option, which defaults to false — so until
now Mac users had no way to select text while a program held the mouse.

**"Following" and "Jump to Current" are gone.** Claude Code draws on the
alternate screen, which has no scrollback, so `viewportY` always equalled
`baseY` and neither control could do anything. They did still work in bash
tabs; xterm's native follow covers that, and the per-write `scrollToBottom()`
went with them because it fought exactly that. What remains, on activate and
after a refit, now samples `viewportY >= baseY` *before* the fit, so opening
the Notes dock no longer yanks a reader to the tail.

**`claude update` runs before every Claude session, not just at container
start.** Containers here stop/start and often just keep running, so a
long-lived one never re-checked. Both copies take the same flock: the
entrypoint prints "container ready" only after its own update finishes, so
opening a tab immediately would otherwise run two updaters against the same
~/.claude/bin, with `|| echo` hiding a half-written install one line before
`exec claude` ran it.

This turns the non-Bedrock path from a bare argv into a `bash -c` wrapper, so
flags and session names are shell-interpolated now and must go through
`shell_quote_arg`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0145mQi9NZiCDrznBUEEDE4n

app/src/store/appState.ts

@@ -205,16 +205,20 @@ interface AppState {
   // UI state
   terminalHasSelection: boolean;
   setTerminalHasSelection: (has: boolean) => void;
+  // Whether a program in the active terminal is holding mouse reporting open,
+  // and how to take it back. Surfaced so the release control can live in the
+  // status bar: painted over the terminal it would sit on top of whatever TUI
+  // is asking for the mouse, and swallow clicks aimed at that program's own
+  // top-right corner for as long as it ran. Only the active TerminalView
+  // writes these.
+  terminalMouseCaptured: boolean;
+  setTerminalMouseCaptured: (captured: boolean) => void;
+  releaseActiveMouse: () => void;
+  setReleaseActiveMouse: (fn: () => void) => void;
   // STT toggle for the active session, registered by App so the terminal's
   // Ctrl+Shift+M shortcut can trigger the single status-bar mic instance.
   sttToggle: () => void;
   setSttToggle: (fn: () => void) => void;
-  // Active terminal scroll state, surfaced so the status bar can host the
-  // "Jump to Current" control. Only the active TerminalView writes these.
-  terminalAtBottom: boolean;
-  setTerminalAtBottom: (v: boolean) => void;
-  scrollActiveToBottom: () => void;
-  setScrollActiveToBottom: (fn: () => void) => void;
   sidebarView: "projects" | "settings";
   setSidebarView: (view: "projects" | "settings") => void;
   sidebarCollapsed: boolean;
@@ -496,12 +500,12 @@ export const useAppState = create<AppState>((set) => ({
   // UI state
   terminalHasSelection: false,
   setTerminalHasSelection: (has) => set({ terminalHasSelection: has }),
+  terminalMouseCaptured: false,
+  setTerminalMouseCaptured: (captured) => set({ terminalMouseCaptured: captured }),
+  releaseActiveMouse: () => {},
+  setReleaseActiveMouse: (fn) => set({ releaseActiveMouse: fn }),
   sttToggle: () => {},
   setSttToggle: (fn) => set({ sttToggle: fn }),
-  terminalAtBottom: true,
-  setTerminalAtBottom: (v) => set({ terminalAtBottom: v }),
-  scrollActiveToBottom: () => {},
-  setScrollActiveToBottom: (fn) => set({ scrollActiveToBottom: fn }),
   sidebarView: "projects",
   setSidebarView: (view) => set({ sidebarView: view }),
   sidebarCollapsed: loadSidebarCollapsed(),