v1.10.4: booterm mobile UX — copy/paste, swipe-close, send-to-chat, search

- Long-press selection + floating menu (mobile + desktop right-click): Copy,
  Paste, Select All, Search, Send to chat. Tap-outside / Esc dismiss.
- Pane-header Paste button (📋) for iOS user-gesture clipboard read.
- Swipe-left-to-close on mobile pane pill with red "Close" overlay and
  translateX visual hint; spring-back below 80px threshold.
- Send-to-chat reverse path: chatInputsRegistry + sendToChat event mirror
  the existing terminalsRegistry pattern. ChatInput appends with newline
  separator on receive and focuses (no auto-send).
- Scrollback search via xterm-addon-search@^0.13.0: SearchBar overlay with
  N-of-M match counter (onDidChangeResults), Enter/Shift-Enter cycling.
- Cmd/Ctrl+F intercept in Session.tsx when active pane is terminal; xterm
  also intercepts when focused. Browser native find passes through elsewhere.
- terminalsRegistry signature extended with openSearch + paste callbacks.

Includes deferred CLAUDE.md updates documenting v1.10/v1.10.1/v1.10.2/v1.10.3
learnings (uid 1000 collision, libc match, two event buses, vite proxy order,
mobile pane URL sync, xterm canvas selection).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -6,6 +6,8 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 Self-hosted single-user developer chat app. AI assistant with read-only file tools (view_file, list_dir, grep, find_files) running against a local llama-swap inference server. Sessions organized by project, with a multi-pane workspace (chat + file browser side by side).
 
+Plus `apps/booterm` (second container, port 9501, bookworm-slim+glibc): Fastify + node-pty + tmux. Browser terminal panes WS to `/ws/term/sessions/:sid/panes/:pid`; per-session tmux session `bc-<sid>`, per-pane window `term-<pid>`. Shells drop privs to samkintop via `gosu` in `tmux.conf` default-command.
+
 ## Commands
 
 ```bash
@@ -35,7 +37,7 @@ Tests: `pnpm -C apps/server test` runs 23 vitest tests. No test harness on `apps
 
 ## Architecture
 
-**Monorepo**: pnpm workspaces with `apps/server` (Fastify + postgres) and `apps/web` (React + Vite).
+**Monorepo**: pnpm workspaces with `apps/server` (Fastify + postgres), `apps/web` (React + Vite), and `apps/booterm` (Fastify + node-pty + tmux).
 
 ### Server (`apps/server/src/`)
 
@@ -99,6 +101,10 @@ Required: `DATABASE_URL`, `LLAMA_SWAP_URL`. Optional: `PORT` (3000), `HOST` (0.0
 - Don't accumulate `.bak-*` files. Clean them up in the same batch or immediately after merge.
 - Fastify global JSON parser tolerates empty bodies (overridden in `index.ts`); bodyless POSTs (archive, unarchive, stop) work without setting `Content-Type` tricks on the client.
 - Event dedup discipline: for any mutation the server publishes via `broker.publishUser`, do NOT add a local `sessionEvents.emit(...)` after the API call — `useUserEvents` forwards the WS frame onto the bus. Frontend mutation handlers must be idempotent (dedup by id, no-op on already-present).
+- `node:20-*` base images ship a `node` user at uid/gid 1000 — delete it (`userdel`/`groupdel` on debian, `deluser`/`delgroup` on alpine) before adding samkintop at 1000.
+- node-pty's compiled `.node` is libc-specific: proddeps and runtime Dockerfile stages must share libc (alpine↔musl or bookworm-slim↔glibc); the TS-only builder stage can stay alpine for speed.
+- pnpm 10 `--frozen-lockfile` skips node-pty's postinstall — the Docker proddeps stage runs `cd node_modules/node-pty && npm run install` to force the native compile.
+- A local PreToolUse hook (`security_reminder_hook.py`) regex-flags Node's older `child_process` spawn helpers as unsafe (false positive even on the File-suffixed variant). Use `spawn` — it's accepted.
 
 ## Conventions
 
@@ -109,3 +115,7 @@ Required: `DATABASE_URL`, `LLAMA_SWAP_URL`. Optional: `PORT` (3000), `HOST` (0.0
 - Discriminated unions for type narrowing: `Pane` (by `kind`), `SessionEvent` (by `type`), `InferenceFrame` (by `type`).
 - shadcn primitives live in `components/ui/`. Don't modify them unless adding a new primitive.
 - `inferLanguage()` from `lib/attachments.ts` is the canonical file-extension-to-language map. `CodeBlock.tsx` keeps its own `LANG_MAP` because it also resolves markdown fence names.
+- Two UI event buses: `hooks/sessionEvents.ts` for DB-state events (chat_created, session_updated); `lib/events.ts` for ephemeral UI (`sendToTerminal`, `terminalsRegistry`). Don't merge — different subscriber lifecycles.
+- `vite.config.ts` proxy entries are order-sensitive: more-specific prefixes (`/api/term`, `/ws/term`) must come BEFORE `/api`.
+- Mobile pane URL sync (`Session.tsx`): the `?pane=<id>` effect resets `activePaneIdx` whenever `panes` changes. New-pane creation on mobile must push `?pane=` atomically — `addPaneAndSwitch` is the wrapper that does this. `addSplitPane` returns the new pane id for callers.
+- xterm.js v5 uses canvas rendering — browser doesn't see xterm's selection; the native right-click menu has no working Copy for terminal text. App keybindings (`Cmd/Ctrl-C`, `Cmd/Ctrl-Shift-C`) are the path.