Append Mesh file picker and paid sharing task after public sharing

docs/SESSION-HANDOVER-20261007.md

@@ -126,11 +126,17 @@ Private backup and artifacts are under
    should continue on the phone after app close, with native controls, queue,
    artwork, authorization and video PiP. Physical V4V acceptance is open.
 
-21. **Public files/folders — queued, perform last:** Make public in both More
+21. **Public files/folders — queued, after prior tasks:** Make public in both More
     menus, discovery by non-peered/non-federated nodes, the same peer-sharing
     pricing interface with blue tints instead of orange, optional charging and
     a tiny blue marker at the icon's top-left. Full scope is backlog task21.
 
+22. **Mesh file sharing — queued, final task after21:** Share file opens From node
+    / From computer; node picker has tree navigation, search across all own files,
+    retained multiple selections at the bottom and Send. Plan node-to-node
+    delivery and support paid files using the usual recipient payment interface.
+    Full scope is backlog task22.
+
 ## Additional release-regression items
 
 - Paid-file recovery must never issue a second payment; source protections and
@@ -284,7 +290,8 @@ No percentage is inferred from test counts.
 | 18 Firewall/tunnel | In progress | Read-only UI done; settings persistence/reboot/rollback qualification |
 | 19 Media guide/Cloud PiP | Nearly finished | PiP operator-accepted; finish reusable contract and remaining edge cases |
 | 20 Native background media | In progress | Cloud PiP done; native audio service/controls and device checks remain |
-| 21 Public files/folders | Queued, final task | Shared pricing interface with blue tints, unrelated-node discovery and tiny marker |
+| 21 Public files/folders | Queued, before22 | Shared pricing interface with blue tints, unrelated-node discovery and tiny marker |
+| 22 Mesh file sharing | Queued, final task | Node/computer choice, tree/search picker, retained multi-selection, delivery design and usual paid-file flow |
 
 Completed subitems: Framework LND startup incident, companion download/viewer
 acceptance, physical upload acceptance, APK55 delivery and reported Cloud PiP
@@ -312,3 +319,11 @@ fleet/device qualification, mirror review/parity and final artifact gates remain
   `~/.local/state/archipelago/release-qualification/indeehub-backup-restore-20261007/`.
 - No live app/container, database, wallet, catalog, payment or public file was
   changed. Disposable fixtures used network-none and no live volumes.
+
+
+### Mesh sharing addition — operator request
+
+Task22 now follows task21 at the end. Its detailed scope is in
+`post-1.9.0-work-backlog.md`. This is a recorded requirement/design task, not a
+claim that the picker or transport/payment flow has been implemented. Existing
+public-sharing blue pricing and marker requirements are retained unchanged.

docs/post-1.9.0-work-backlog.md

@@ -551,7 +551,7 @@ and video, with video using picture-in-picture where the device supports it.
   from browser-only tests.
 
 
-## 21. Public files and folders — final task
+## 21. Public files and folders — deferred end-of-list task
 
 Added by the operator on 2026-10-07. Perform after the existing tasks, including
 previously deferred work. Status: queued; no public visibility has been changed.
@@ -578,3 +578,41 @@ previously deferred work. Status: queued; no public visibility has been changed.
   unrelated-node discovery, paid access, withdrawal and mobile/desktop layouts.
   No live file publication or real payment is authorized merely by adding this
   task to the backlog.
+
+
+## 22. Mesh Share file: node/computer picker and paid delivery — final task
+
+Added by the operator after task21 on 2026-10-07. Append after public sharing;
+status: queued. Plan the node-to-node sharing design before implementation.
+
+- Clicking **Share file** in Mesh opens a source-choice modal with **From node**
+  and **From computer**. From computer opens the local device file picker;
+  plan upload/staging and delivery within the same send flow.
+- **From node** opens a polished file-browser modal using the existing design
+  system, with folder-tree navigation and search across **all of the user's own
+  files**, not just the currently open folder. Preserve ownership/permissions;
+  show useful paths for matching names and truthful loading/empty/error states.
+- Allow multiple file selections. Retain selections across tree navigation and
+  searches, collect them in a selection area at the bottom, allow individual
+  removal, and provide a clear **Send** action with a selected-file count.
+  Keep the browser and selection area usable on mobile and desktop.
+- Plan and compare the supported node-to-node delivery paths before choosing
+  the implementation: reuse existing authenticated file sharing, discovery and
+  FIPS transports where suitable. Determine what the Mesh message carries,
+  how recipient identity/access is checked, where file bytes reside, and how
+  local-computer files become available without duplicate uploads or exposing
+  unrelated/private files. Distinguish Mesh messaging from bulk-file transport;
+  cover sender offline, recipient offline, reconnect, expiry and resumable
+  delivery with explicit progress and failure/retry behaviour.
+- Support sharing an existing paid file and configuring a paid share through
+  the existing pricing flow. When a recipient opens a paid file, present the
+  **usual purchase/payment interface** and supported payment methods; verify
+  settlement/entitlement before releasing paid content. Reuse ownership and
+  recovery logic so repeat opens, retries and lost replies do not charge again.
+- Define mixed free/paid multi-file messages, recipient previews, per-file price
+  and delivery states, existing entitlements and source deletion/withdrawal.
+  Selecting or sending a file must not silently make it globally public;
+  preserve the distinction from task21 public discovery.
+- Qualify both source choices, tree navigation, whole-library search, retained
+  multi-selection/removal, Send, cross-node receipt/open/download, free and paid
+  access, duplicate/reconnect recovery and responsive/accessibility behaviour.