feat: let the operator pause and resume a root's indexing (MNP 6.2)

A whole-root walk now checks its root before every file: removed or
ejected, it stops instead of reading the drive to the end; paused, it
finishes from the hash cache alone. A paused root is not watched, not
swept by reconcile and survives a restart (roster), its indexed files
stay served. Resume runs the reconcile sweep over the root, so entries
and their enrichment are kept.

Signed root_pause / root_resume over MNP, loopback routes, CLI
`root pause|resume`, a pause button on the indexing dock and
pause/resume in the roots table of Group settings.

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

1 files changed, 21 insertions, 0 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/transport-admin.js b/packages/meshbay-hub/src/meshbay_hub/static/transport-admin.js
index 7bc77af..aea156b 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/transport-admin.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/transport-admin.js
@@ -279,6 +279,27 @@ extendTransport(class {
     return msg;
   }
 
+  // Stop / restart indexing one root (MNP 6.2). Already-indexed files stay
+  // listed while it is paused.
+  async pauseRoot(groupId, rootName, signFn) {
+    return this._rootIndexOp('root_pause', groupId, rootName, signFn);
+  }
+
+  async resumeRoot(groupId, rootName, signFn) {
+    return this._rootIndexOp('root_resume', groupId, rootName, signFn);
+  }
+
+  async _rootIndexOp(type, groupId, rootName, signFn) {
+    const msg = await this._sendAndWait({
+      type, v: '6.2', group_id: groupId, root_name: rootName,
+    });
+    if (msg.type === 'error') throw new Error(msg.detail);
+    if (msg.type === 'admin_challenge') {
+      return this._authorizeAdminOp(msg, type, rootName, signFn);
+    }
+    return msg;
+  }
+
   /**
    * Ask the node for a one-time pairing code admitting `userId` to this group.
    *