## Why
WSL clipboard reads previously launched PowerShell for every paste. Process creation can hang under WSL and stall the shared clipboard worker.
## What changed
- Reuse a persistent PowerShell reader on a dedicated thread, keeping clipboard requests bounded by their deadlines and restarting the reader after errors.
- Prewarm the reader at startup when right-click paste is allowed on WSL, without accessing clipboard contents.
- Use length-framed UTF-8 responses to preserve whitespace and distinguish consecutive pastes while enforcing message size limits.
## Testing
Update the command-reader test to cover consecutive responses from one process, large clipboard text, UTF-8 and whitespace preservation, and read timeouts.
GitOrigin-RevId: 36af338097d6b178ab4887faa5918240c47e1515
## What changed
- Publish released mouse selections from both transcript views to X11 `PRIMARY` as plain text, even when copy-on-select is disabled. Preserve configured `CLIPBOARD` copying when it is enabled.
- Paste `PRIMARY` into the editable fullscreen composer on middle-click, including while a transcript selection remains active.
- Limit support to local Linux X11 sessions, excluding Wayland, SSH, tmux, WSL, and VS Code terminals.
- Retain the latest deferred selection publication and order it before a pending `PRIMARY` read, while giving explicit copies priority. Cancel stale deferred work when its selection or paste target is invalidated.
- Clarify that scrollback mode uses native terminal copy, paste, and scrollback.
## Testing
Add regression tests for selection publication with copy-on-select enabled and disabled, publication-before-read ordering, explicit-copy priority, cancellation of deferred work, and middle-click paste invalidation.
GitOrigin-RevId: 6ba7bddffda60183b7f9ad5cd69a97da8a4a8dcd
## What changed
- Add `tui.right_click_paste` with `auto`, `on`, and `off` modes. The default `auto` enables the fallback on Windows and Linux, including WSL when terminal detection is conclusive. `on` also enables macOS. Both modes skip SSH sessions and recognized VS Code terminals.
- Paste clipboard text through the normal composer input path when no selection, search, or blocking view takes precedence. Discard pending results after intervening input, focus loss, or changes to the target thread, draft, or cursor.
- Read text asynchronously through the shared clipboard worker, with a five-second deadline and the message size limit. Read the Windows clipboard through PowerShell on WSL and reject overlapping clipboard operations.
## Testing
Add coverage for platform and terminal policy, normal paste delivery, stale reads, overlapping clipboard operations, read timeouts, oversized text, and large command output.
GitOrigin-RevId: 0a7b6d445c09928da6c5335841ba2a9a66cc7e4b
Eric Traut