fix(groups): finish Phase 1 — MNP root management, upload targets, eject state

Review of the Phase 1 commit found the RO/RW model sound but three paths
unfinished, each of which broke the flow the phase exists to deliver. Plus
29 test failures it introduced and no coverage for anything it added.

Uploads went to the wrong directory. The node read a `root` field on
file_upload that no client ever sent, so every upload landed in the first
writable root while the Files toolbar offered its button based on the root
being browsed — with two writable roots, uploading from one wrote into the
other. Files now names the root it is showing; Chat names one chosen in the
shell (an operator-configured directory arrives in Phase 2); the node refuses
an unknown name rather than falling back, and refuses read-only and ejected
roots by code.

Shared directories were unreachable on the web. The table read its roots
only from the loopback API, which resolves to "not available" in a browser,
so the section rendered for nobody there — while the Uploads controls it
replaced had worked — and the transport.updateRoot/ejectRoot/plugRoot methods
beside it were dead. MNP is now the path, loopback the fallback for a local
node with no live connection, and adding a root over MNP takes a typed path
since no web page can browse a remote disk.

Ejecting updated nobody's screen. transport.js resolves an admin ack against
the pending request and returns, which is right for every op whose caller
knows the value it chose; the root acks carry state only the node can compute,
so the operator who clicked Eject was the one client that never saw it happen.
And the ejected flag reached roster.db but was never read back, so a restart
undid it and the next scan read an empty mount point as an erased library.

Also: the member-upload endpoint answered 200 and did nothing (removed); the
wizard ignored the first root's RW switch; reload compared roots on name and
path, so editing writable in node.toml did nothing; the table had no path
column, which is the only thing separating two libraries sharing a basename;
apps_enabled normalisation differed between the two sides of a signed subject.

Tests: eject/plug, per-root upload refusal and the node.toml rewrite had no
coverage at all. test_member_upload_policy.py is replaced by
test_root_writable_policy.py — it tested a removed feature — and every
property worth keeping from it moved rather than being dropped.

Docs: draft-v6 structural decision 9 is annotated as superseded (the operator
can no longer have a directory only they may write to — a real capability
removed, flagged rather than hidden), the man page documents the root verb and
the RO/RW fields, and refactor-groups.md §7b records what the plan got wrong.

Suite: 41 failures before, 13 after — all 13 pre-existing on main.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011pvMdvLBG92jyhvD5pD6us

1 files changed, 13 insertions, 1 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/de.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/de.js
index f929873..ea14814 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/de.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/de.js
@@ -169,6 +169,10 @@ export default {
   'device.approve_btn': 'Approve',
   'device.approved': 'Device linked.',
   'group.root_unavailable': '(nicht verfügbar — Laufwerk getrennt)',
+  'group.root_plug': 'Einstecken',
+  'group.root_eject': 'Auswerfen',
+  'group.root_writable': 'Lesen/Schreiben',
+  'group.root_ejected': '(ausgeworfen)',
   'group.view': 'Ansehen',
   'group.delete': 'Löschen',
   'group.delete_confirm': '{name} löschen?',
@@ -195,6 +199,7 @@ export default {
   'chat.placeholder': 'Nachricht schreiben …',
   'chat.send': 'Senden',
   'chat.attach': 'Datei anhängen',
+  'chat.attach_read_only': 'Kein beschreibbares freigegebenes Verzeichnis — Anhänge sind aus',
 
   // Video player
   'video.loading': '{name} wird geladen …',
@@ -722,10 +727,16 @@ export default {
   'node.roots': 'Verzeichnisse',
   'node.add_root': 'Verzeichnis hinzufügen',
   'node.remove_root': 'Entfernen',
+  'node.root_no_signing_key': 'Kein Signaturschlüssel verfügbar — koppeln Sie dieses Gerät zuerst mit dem Node',
+  'node.root_no_route': 'Keine Verbindung zum Node — verbinden Sie sich damit oder verwenden Sie die App auf dem Rechner, der ihn hostet',
+  'node.root_remove_last': 'Eine Gruppe braucht mindestens ein Verzeichnis',
+  'node.root_path_hint': 'Der Pfad, wie der Node ihn sieht, auf dem Rechner, der diese Gruppe hostet.',
+  'node.root_path_placeholder': '/home/user/Media',
+  'node.root_path': 'Pfad',
+  'node.directory': 'Verzeichnis',
   'node.root_added': 'Verzeichnis hinzugefügt.',
   'node.root_remove_confirm': '„{name}" aus dieser Gruppe entfernen?',
   'node.root_removed': 'Verzeichnis entfernt. Neustart empfohlen, um den Index zu aktualisieren.',
-  'node.upload_root': 'Uploads',
   'node.attach_group': 'Gruppe hinzufügen',
   'node.attach_pick': 'Zu hostende Gruppe',
   'node.attach_dir': 'Freigegebenes Verzeichnis',
@@ -807,6 +818,7 @@ export default {
   'settings_node.photo_roots_save': 'Speichern',
   'settings_node.shared_directories_title': 'Freigegebene Verzeichnisse',
   'settings_node.shared_directories_hint': 'Ordner, die mit dieser Gruppe geteilt werden. Lesen/Schreiben umschalten, um Uploads zu erlauben. Als wechselbar markieren für externe Laufwerke.',
+  'settings_node.roots_offline_hint': 'Nicht mit dem Node verbunden — Änderungen laufen über den lokalen Node und greifen beim nächsten Neuladen.',
   'settings_node.directories_title': 'App-Verzeichnisse',
   'settings_node.directories_hint': 'Freigegebene Ordner und welchen davon die Videos-, Musik- und Fotos-Apps als eigene(n) Einstiegspunkt(e) nutzen.',