v0.19.0-beta.0

Delta since previous beta (v0.18.1-beta.3) — 2 new changesets.

Minor Changes

• Add the bottom "Ask AI" composer to the folder overview page. Opening a folder now shows the same desktop composer that the editor has, docked below the file list and scoped to that folder: the folder is its top-row context chip and the dispatch lead, so a typed instruction hands off as "work on the <folder> folder" (with any extra @-mentions preserved). Picking a Terminal CLI, the rotating placeholder, agent stickiness, and ⌘L all behave exactly as in the editor. The folder is a removable chip — clearing it drops to project scope; the content-root overview dispatches as bare project scope. Internally this adds a folder compose-scope to the unified handoff prompt assembler so folder dispatches keep @-mention support (the directive composeFolderPrompt path carries none).

Patch Changes

• Terminal tabs now show the title the running program sets. Programs name the terminal through the standard OSC 0 / OSC 2 escape sequences (ESC ] 0 ; <title> BEL) — shells via PROMPT_COMMAND, vim, and the claude TUI all do this — and the docked terminal now picks that up and uses it as the tab label, the same way other terminals do. Each tab falls back to its positional Terminal N default until its program sets a title, reverts to that default if the program clears the title (e.g. on exit), and updates live as the title changes. This makes a strip of several shells (a few for a monorepo, a few Claude Code instances) navigable at a glance. Desktop only.