feat: v2.7.8 — Artifacts hub, clone related repos as extra folders, quieter resume prompt

- Artifacts (/artifacts): claude.ai pages sessions publish (captured from the
  Artifact tool's hook), pinned workspace files, skills and plugins, each
  kept as a snapshot; shared ones appear in a Hub and a skill or plugin
  installs into the viewer's own account (server/lib/artifacts.js,
  /api/artifacts, docs/plans/artifacts/).
- Workspace extra folders: clone one or more related repos beside the
  workspace and add them in one step (POST /api/lanes/:id/sources/clone).
- A pane that ended by itself while tmux kept running is no longer offered
  for resume (tmux.serverStartedAt in reconcileOrphans).
- Changes panel: a folder that is not a git repo opens on Files, and its
  files open from there.
- Plus the parallel sessions' work in this tree: File Explorer button in the
  panel header, user delete, RSA SSH keys, chat/terminal and pet fixes.

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

client/src/i18n/locales/en/artifacts.json

@@ -0,0 +1,75 @@
+{
+  "title": "Artifacts",
+  "subtitle": "What your agents produced — claude.ai pages, files, skills and plugins — kept in one place.",
+  "subtitleServer": "What your agents produced — claude.ai pages, files, skills and plugins. Share one and it appears in the Hub for everyone.",
+  "tab.mine": "My library",
+  "tab.hub": "Hub",
+  "kind.all": "All",
+  "kind.page": "Pages",
+  "kind.file": "Files",
+  "kind.skill": "Skills",
+  "kind.plugin": "Plugins",
+  "kindOne.page": "Page",
+  "kindOne.file": "File",
+  "kindOne.skill": "Skill",
+  "kindOne.plugin": "Plugin",
+  "search": "Search artifacts…",
+  "add": "Add",
+  "add.page": "claude.ai link",
+  "add.file": "File from a workspace",
+  "add.skill": "Skill",
+  "add.plugin": "Plugin",
+  "empty.mine": "Nothing here yet. Pages your sessions publish appear on their own; add files, skills and plugins with Add.",
+  "empty.hub": "Nobody has shared anything yet.",
+  "loading": "Loading…",
+  "by": "by {{name}}",
+  "shared": "Shared",
+  "share": "Share",
+  "unshare": "Unshare",
+  "shareDone": "Shared to the Hub",
+  "unshareDone": "Removed from the Hub",
+  "open": "Open",
+  "preview": "Preview",
+  "download": "Download",
+  "install": "Install",
+  "installs": "{{count}} installs",
+  "installed": "Installed to {{path}}",
+  "installedPlugin": "Installed {{name}} — start a new session (or /reload-plugins) to use it",
+  "rename": "Rename",
+  "delete": "Delete",
+  "deleteTitle": "Delete “{{title}}”?",
+  "deleteBody": "It is removed from your library and the Hub. Anything already installed from it stays installed.",
+  "deleteConfirm": "Delete",
+  "installTitle": "Install “{{title}}”?",
+  "installSkillBody": "These files are written to your own ~/.claude/skills/{{name}}/. A skill can carry scripts your agent will run — only install what you trust:",
+  "installPluginBody": "Runs, as your account: claude plugin marketplace add {{market}} and claude plugin install {{name}} --scope user. Only install what you trust.",
+  "installConfirm": "Install",
+  "replaceTitle": "Replace your skill “{{name}}”?",
+  "replaceBody": "You already have a skill with that name. Yours is moved to ~/.claude/agenthub-replaced-skills/, not deleted.",
+  "replaceConfirm": "Replace",
+  "installsOff": "Installs are off",
+  "installsSwitch": "Allow installing from the Hub",
+  "installsSwitchHint": "Off: nobody can install a shared skill or plugin into their account.",
+  "form.url": "claude.ai link",
+  "form.title": "Title (optional)",
+  "form.description": "Description (optional)",
+  "form.workspace": "Workspace",
+  "form.pickWorkspace": "Pick a workspace…",
+  "form.noCandidates": "No documents written by this workspace's sessions yet.",
+  "form.pinned": "Pinned",
+  "form.pin": "Pin",
+  "form.missing": "gone",
+  "form.skillFrom": "Skill",
+  "form.fromUser": "mine",
+  "form.fromWorkspace": "workspace",
+  "form.noSkills": "No skills found in your ~/.claude/skills or this workspace's .claude/skills.",
+  "form.pluginKey": "Plugin (name@marketplace)",
+  "form.market": "Marketplace (owner/repo or git URL)",
+  "form.save": "Add",
+  "form.cancel": "Cancel",
+  "added": "Added",
+  "files": "{{count}} files",
+  "close": "Close",
+  "fromSession": "From a session",
+  "form.saveEdit": "Save"
+}

client/src/i18n/locales/en/lanes.json

@@ -417,6 +417,12 @@
   "home.addFolder": "Add folder",
   "home.folderPath": "Absolute folder path",
   "home.add": "Add",
+  "home.cloneFolders": "Or clone repositories",
+  "home.cloneHint": "One URL per line — each is cloned into {{path}} with your own git login (Settings → Git) and added here.",
+  "home.clonePlaceholder": "https://host/owner/repo.git\ngit@host:owner/other.git",
+  "home.cloneRun": "Clone",
+  "home.cloneRetry": "Retry the failed ones",
+  "home.cloneDone": "Added",
   "home.suggested": "Untracked worktrees",
   "home.remove": "Remove",
   "home.missing": "missing",
@@ -606,5 +612,6 @@
   "fx.userHomes": "Users' homes",
   "fx.readOnlyHome": "Another user's home — view and download only",
   "fx.readOnly": "Read-only",
-  "fx.readOnlyHint": "This is another user's home: you can view, copy and download, not change it."
+  "fx.readOnlyHint": "This is another user's home: you can view, copy and download, not change it.",
+  "fx.homeEmpty": "Nothing in your home yet — its hidden files (.bashrc, .claude…) are not shown here. Your workspaces are on the left."
 }

client/src/i18n/locales/en/nav.json

@@ -1,5 +1,6 @@
 {
   "activityFeed": "Activity Feed",
+  "artifacts": "Artifacts",
   "agents": "Agents",
   "analytics": "Analytics",
   "avg": "avg",

client/src/i18n/locales/en/settings.json

@@ -57,8 +57,7 @@
       "attention": "Needs you",
       "attentionError": "errored",
       "attentionWaiting": "waiting on you",
-      "attentionMore": "+{{count}} more in Sessions",
-      "chat": "Chat with {{name}}"
+      "attentionMore": "+{{count}} more in Sessions"
     },
     "bubbleDismiss": "Dismiss",
     "open": "Open {{name}} companion",
@@ -911,11 +910,14 @@
     "removeKeyConfirm": "Delete this SSH key? Clones that use it can no longer fetch or push.",
     "publicKey": "Public key",
     "copy": "Copy public key",
-    "addKeyHint": "Add this public key to your account on the git host (GitHub: Settings → SSH and GPG keys; GitLab: Preferences → SSH Keys). The private key never leaves the server.",
+    "addKeyHint": "Add this public key to your account on the git host (GitHub: Settings → SSH and GPG keys; GitLab: Preferences → SSH Keys; AWS: IAM → Security credentials → SSH public keys — RSA only). Paste the whole line as one line. The private key never leaves the server.",
     "noKey": "No SSH key yet. Without one, an SSH clone uses the account's default ~/.ssh keys.",
     "httpsTitle": "HTTPS logins",
     "noLogins": "No HTTPS login saved. A clone asks for one when a host needs it.",
-    "removeLoginConfirm": "Delete the login for {{host}}? Clones from that host will ask for a login again."
+    "removeLoginConfirm": "Delete the login for {{host}}? Clones from that host will ask for a login again.",
+    "keyType": "Key type",
+    "keyEd25519": "ED25519 (GitHub, GitLab, Gitea)",
+    "keyRsa": "RSA 4096 (AWS CodeCommit, older servers)"
   },
   "gitCreds": {
     "title": "Git credentials",

client/src/i18n/locales/en/users.json

@@ -57,7 +57,8 @@
     "enabled": "{{name}} enabled",
     "password": "{{name}}'s password reset",
     "workspace": "Workspace given to {{name}}",
-    "updated": "{{name}} updated"
+    "updated": "{{name}} updated",
+    "deleted": "{{name}} was deleted."
   },
   "errors": {
     "EREAUTH": "Your password is wrong.",
@@ -72,7 +73,8 @@
     "ENOTOWNED": "That workspace is not this user's any more.",
     "EOWNERFOLDER": "That workspace's folder belongs to another user's account.",
     "EBADROLE": "Unknown role.",
-    "ELOCALMODE": "Accounts are managed in server mode only."
+    "ELOCALMODE": "Accounts are managed in server mode only.",
+    "ELASTADMIN": "The last admin cannot be deleted."
   },
   "readOnly": "Analysts can view accounts but not change them.",
   "auditTitle": "Audit log",
@@ -187,5 +189,12 @@
       "codex": "An OpenAI API key (sk-…), or the whole ~/.codex/auth.json after `codex login` with a ChatGPT account."
     },
     "refreshFailed": "refresh failed"
+  },
+  "delete": {
+    "button": "Delete user",
+    "title": "Delete {{name}}?",
+    "body": "This deletes {{name}} for good: their login, {{count}} workspace(s), and their Linux account with the whole home folder (/srv/agenthub/users/{{user}}) — every file and all source code in it. It cannot be undone. Session history and the audit log stay.",
+    "confirm": "Delete for good",
+    "needsPassword": "Enter your own password below first."
   }
 }