feat(ui): 11-point UI overhaul — tabs, transfers, settings, uploads

Hub/UI:
- Icon-only group tabs (chat, files, settings) with per-group default tab
- Transfer widget: filename becomes a clickable link to open completed downloads
- Pulse animation on transfer icon (pale→dark green) while active
- Download button feedback in FilePreview (spinner, auto-reset)
- Group mute toggle persists across navigation
- Login page autofocus, chat refocus after send
- Theme toggle closes menu, status badge and duplicate connecting removed
- Create-folder restricted to operators, download-path note removed
- User preferences API (CRUD) with Alembic migration
- Profile: email display/edit via PATCH /v1/users/me
- Settings: "Defaults" section for default tab selector
- All 10 locale files updated

Node:
- upload_dir in node.toml: separate filesystem path for uploads
- Root.direct flag: uploads land at root path, no subdirectory
- CLI --upload-dir flag on `group add`
- Admin UI accepts upload_dir

Client (Electron):
- shell.openPath bridge for opening completed downloads
- platform.js passes open callback from native save

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 14 insertions, 5 deletions

diff --git a/packages/meshbay-node/src/meshbay_node/daemon.py b/packages/meshbay-node/src/meshbay_node/daemon.py
index 45aca7a..6d4f172 100644
--- a/packages/meshbay-node/src/meshbay_node/daemon.py
+++ b/packages/meshbay-node/src/meshbay_node/daemon.py
@@ -799,6 +799,8 @@ def main() -> None:
                              "denylist clear")
     parser.add_argument("--dir", default=None,
                         help="shared directory, for group add")
+    parser.add_argument("--upload-dir", default=None,
+                        help="separate upload directory, for group add")
     parser.add_argument("--yes", action="store_true",
                         help="skip the confirmation for destructive commands")
     parser.add_argument("--config", type=Path, default=None,
@@ -1147,7 +1149,9 @@ def main() -> None:
                       f"{g.get('peers', 0)} peer(s)")
                 print(f"      {g['id']}")
                 for r in g.get("roots", []):
-                    flags = " (uploads)" if r.get("upload") else ""
+                    flags = ""
+                    if r.get("upload"):
+                        flags = " (uploads, direct)" if r.get("direct") else " (uploads)"
                     live = "" if r.get("available", True) else "  [UNAVAILABLE]"
                     print(f"      root {r['name']}{flags}{live}")
                 if not g.get("has_gek"):
@@ -1156,20 +1160,25 @@ def main() -> None:
             return
 
         if args.subcommand != "add":
-            print("usage: meshbay-node group list|add <name> --dir <path>")
+            print("usage: meshbay-node group list|add <name> --dir <path> [--upload-dir <path>]")
             sys.exit(1)
         if not args.target or not args.dir:
-            print("usage: meshbay-node group add <name> --dir <path>")
+            print("usage: meshbay-node group add <name> --dir <path> [--upload-dir <path>]")
             print()
             print("The group must already exist on the hub and be yours. This")
             print("only tells the node to host it, and picks the directory.")
+            print("--upload-dir sets a separate directory for uploaded files.")
             sys.exit(1)
 
         cfg = load_config(args.config or DEFAULT_CONFIG_PATH)
-        out = _daemon_api(cfg, "/api/groups/attach", method="POST",
-                          body={"name": args.target, "shared_dir": args.dir})
+        body = {"name": args.target, "shared_dir": args.dir}
+        if args.upload_dir:
+            body["upload_dir"] = args.upload_dir
+        out = _daemon_api(cfg, "/api/groups/attach", method="POST", body=body)
         print(f"{out['name']} ({out['group_id'][:8]}) added to {out['config']}")
         print(f"  shared_dir   {out['shared_dir']}")
+        if out.get("upload_dir"):
+            print(f"  upload_dir   {out['upload_dir']}")
         print()
         print("Tell the daemon to re-read its config, then give the group a key:")
         print("  meshbay-node reload")