Add worktrees, per-hunk review, effort per message, regenerate, voice input

- Isolated git worktree per session (create, status, merge, discard)
- Permission card: accept file-edit hunks individually; agent learns what was rejected
- Reasoning effort per message; regenerate the last answer with another model/effort
- Voice input via the Web Speech API
- Folder-up button in the file browser; ssh, rsync and mc in the image

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/i18n/en.ts

@@ -334,6 +334,41 @@ export const en = {
   "jobs.status.done": "done",
   "jobs.status.timeout": "timed out",
   "jobs.status.error": "error",
+  "chat.more": "More",
+  "worktree.title": "Isolated git worktree",
+  "worktree.hint": "The agent works on its own branch; your working copy on “{base}” stays untouched until you merge.",
+  "worktree.dirty": "{n} uncommitted files",
+  "worktree.commits": "{n} commits",
+  "worktree.merge": "Merge into {base}",
+  "worktree.remove": "Discard",
+  "worktree.mergeConfirm": "Commit open changes and merge {branch} into {base}?",
+  "worktree.removeConfirm": "Discard the worktree and branch {branch}? Unmerged changes are lost.",
+  "worktree.merged": "Merged into {base}",
+  "worktree.removed": "Worktree discarded",
+  "worktree.created": "The session now works in its own worktree",
+  "worktree.create": "Isolated worktree",
+  "worktree.busy": "Wait until the agent is done.",
+  "worktree.isolate": "Work in an isolated git worktree",
+  "worktree.isolateHint": "own branch, merge when done",
+  "worktree.creating": "Creating worktree…",
+  "files.up": "One folder up",
+  "permission.hunksHint": "{n} changes – untick the ones you don't want.",
+  "permission.applySelected": "Apply selected ({k}/{n})",
+  "effort.title": "Thinking effort for this message",
+  "effort.auto": "Effort: model default",
+  "effort.autoShort": "Effort: auto",
+  "effort.low": "Effort: low",
+  "effort.medium": "Effort: medium",
+  "effort.high": "Effort: high",
+  "effort.max": "Effort: max",
+  "regen.button": "Regenerate",
+  "regen.title": "Redo this answer",
+  "regen.hint": "Removes this answer (and restores files it changed), then runs your last message again – with the model and effort chosen here.",
+  "regen.go": "Regenerate",
+  "voice.start": "Dictate (speech recognition of your browser)",
+  "voice.stop": "Stop dictation",
+  "voice.denied": "Microphone access was denied – allow it in the browser settings.",
+  "voice.error": "Speech recognition failed",
   "new.title": "New session",
   "new.directory": "Project directory",
   "new.up": "Up",