Host: `tab_find {id, action, query}` (shell-only; start, next, previous, stop). On Windows it drives WebView2's own find (`ICoreWebView2Find` from `ICoreWebView2_28`, find options from `ICoreWebView2Environment15`; its built-in find bar suppressed, all matches highlighted) and reports the engine's match count and active match to the shell as `tab-find` events. On macOS, Linux and an older WebView2 Runtime native code evaluates the engine's `window.find` in the tab instead (next and previous work, no count); WKWebView's and WebKitGTK's native find are not wired here because this tree cannot be compiled or run for them on this machine. The query is one typed line (1..=256 characters, no control characters), goes to the engine and is kept nowhere. Tabs gain no command: a tab forwards the existing key name `find` (Ctrl+F) through tab_shortcut.
Frame: FindBar.tsx takes the address field's place in its pane's toolbar while open, so the page does not move and in split view the bar is the searched pane's. "3/17" where the engine counts, "No matches" for none; Enter / F3 next, Shift+Enter / Shift+F3 previous, Esc closes, clears the highlights and gives the page the keyboard. `features.find` (on by default) gates the menu row, the palette entry and the keys. Only what the page has rendered can be found, as in a browser.
Also: this makes `pub mod find` in lib.rs (already in HEAD) resolve again.
Frame: AppMenu.tsx is a menu at the end of the titlebar cluster (before the caption buttons; macOS has none there). Its rows are `ShellSite.menu`: ordered groups of built-in rows by name and the app's own ({id, label, icon, shortcut, hint, when, checked, run | submenu}); `DEFAULT_MENU`, `menuWith` and `menuWithout` order, add and remove. A built-in row shows only when the app serves it (decks, `menu.languages`, themes, `menu.modes`, and `features`: zoom, store, workspaces, developer, updates), so no app gets a dead row. Language, Theme, Mode, Workspaces and Developer are submenus; Language and Theme apply live and keep the menu open, Mode asks the same keep-my-changes question as Settings (panel `menuModes()`). Keyboard: arrows, Home/End, type-ahead, the arrow along the reading direction opens a submenu, Esc closes one level; ARIA menu roles; submenus stay inside the window; one highlight for pointer and keys. It is an overlay like the other shell menus (the shell is raised, panes stay visible, nothing is dimmed).
Words: menuMessages.en.json (`wb.menu.*`), read through the framework i18n with that English as the fallback until the catalogs have them; words the panel already has are reused.
Host: `tab_zoom {id, factor}` (shell-only) sets a tab's page zoom with the engine's own zoom, clamped to 25%..500% and remembered per tab id in app data `zoom.json` (a number per tab id, nothing else; a closed tab's entry goes); without a factor it reads. A tab may forward four more shortcut names: `app-menu`, `zoom-in`, `zoom-out`, `zoom-reset`. The titlebar shows a zoom chip only while the pane in front is not at 100%.
create-waybetter: `tab_zoom` in the shell capability list; the template says which panel sections it lacks (store, updates) and how to add menu rows.
tab-bridge.js (moved from wayBetter for X) is served by bridge::SOURCE,
or by bridge::script(BridgeOptions) with shortcut and link-drag
forwarding switched off for a shell that does not handle them (a
forwarded shortcut is taken from the page). Tests: one options line,
only tab_report/tab_shortcut/tab_link_drag, every forwarded shortcut is
one tabs::valid_shortcut accepts. Generated apps now inject
bridge::script(BridgeOptions::REPORT_ONLY) instead of writing their own
duplicated src-tauri/runtime/tab-bridge.js.
