Add web terminal, git credentials, OpenSCAD, review loops, automations

- Web terminal (PTY over WebSocket, xterm.js, sandboxed, reattach with replay)
- Per-user git credentials and commit identity (credential store in the user's home)
- OpenSCAD tool (STL/3MF + preview renders, bounding box) and cad skill; 3D model card
- Craft phase inferred from tool activity when the agent does not report it
- Configurable review loop per mode (rounds, reviewer model, criteria)
- Delete config and Markdown agents from the agent editor
- Automations: cron-scheduled agents from Markdown job files, schedule tool, page
- change_directory tool (only on the user's request)

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

web/src/i18n/en.ts

@@ -277,6 +277,63 @@ export const en = {
   "rename.title": "Rename session",
   "rename.generateWith": "Suggest a name with",
   "rename.generate": "Generate",
+  "nav.terminal": "Terminal",
+  "terminal.new": "New terminal",
+  "terminal.close": "Close terminal",
+  "terminal.here": "Open a terminal in this folder",
+  "terminal.connecting": "Connecting…",
+  "terminal.reconnecting": "Connection lost – reconnecting…",
+  "terminal.keys": "Extra keys",
+  "gitcred.title": "Git",
+  "gitcred.hint": "Used by your agents, the terminal and the git client to pull and push (e.g. Gitea/GitHub/GitLab access tokens). Stored in your home folder as git credential store – only your sessions can use them.",
+  "gitcred.name": "Commit name",
+  "gitcred.email": "Commit email",
+  "gitcred.credentials": "Credentials",
+  "gitcred.none": "No credentials yet.",
+  "gitcred.host": "Host",
+  "gitcred.user": "Username",
+  "gitcred.token": "Password or token",
+  "gitcred.add": "Add host",
+  "gitcred.saved": "Git settings saved",
+  "wizard.task.cad": "3D model for printing",
+  "wizard.task.cadDesc": "From a description or a hand-drawn sketch – OpenSCAD, STL/3MF",
+  "wizard.placeholder.cad": "Describe the part and its dimensions – or attach a photo of your sketch (with measurements).",
+  "wizard.idea.cadBox": "A box with a snap-on lid, inner size 80 × 50 × 30 mm",
+  "wizard.idea.cadBracket": "A wall bracket for a 25 mm pipe with two M4 screw holes",
+  "activity.reviewing": "Reviewing the result (round {round})…",
+  "chat.reviewRound": "Review {round}: changes requested",
+  "agents.refine": "Review loop",
+  "agents.refineRounds": "Review rounds per task",
+  "agents.refineOff": "0 = off",
+  "agents.refineModel": "Reviewer model",
+  "agents.refineCriteria": "Review criteria",
+  "agents.refineCriteriaHint": "Empty = default criteria of this mode. After each finished task a reviewer checks the result against your request; with findings the agent continues, up to the number of rounds.",
+  "agents.refineShort": "Review ×{n}",
+  "agents.deleteFile": "Delete agent file {path}?",
+  "nav.jobs": "Automations",
+  "jobs.intro": "Agents that start on a schedule. Each automation is a Markdown file (prompt + schedule in the frontmatter) – ask an agent in any chat to create one (tool “schedule”) or register a file below. Every run appears as a normal chat; if it needs permission you get a push notification.",
+  "jobs.none": "No automations yet.",
+  "jobs.schedule": "Schedule",
+  "jobs.next": "Next run",
+  "jobs.last": "Last run",
+  "jobs.mode": "Runs as",
+  "jobs.on": "On",
+  "jobs.off": "Off",
+  "jobs.enable": "Enable",
+  "jobs.disable": "Disable",
+  "jobs.runNow": "Run now",
+  "jobs.editFile": "Edit file",
+  "jobs.remove": "Remove",
+  "jobs.deleteConfirm": "Remove the automation “{name}”? The job file stays.",
+  "jobs.openRun": "Open run",
+  "jobs.prompt": "Instructions",
+  "jobs.register": "Register a job file",
+  "jobs.registerHint": "Path to a Markdown file with a schedule in its frontmatter:",
+  "jobs.registerBtn": "Register",
+  "jobs.status.running": "running",
+  "jobs.status.done": "done",
+  "jobs.status.timeout": "timed out",
+  "jobs.status.error": "error",
   "new.title": "New session",
   "new.directory": "Project directory",
   "new.up": "Up",