fix: restore web terminal multiline paste by reverting scrollback to 10000

- Revert xterm.js scrollback from 0 to 10000; empirical correlation with
  bracketed-paste mode failing (each line submitted as separate command).
- Add temporary browser-console diagnostics to confirm whether xterm receives
  pi's \e[?2004h enable sequence and whether outbound paste is BPM-wrapped.
- Keep CSS scrollbar hiding and wheel-sensitivity 0 so the original scroll-jank
  fix remains effective.

Typecheck: passed (apps/web)

apps/web/src/components/features/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps/web/src/components/features
 
 ## role
-Reusable UI components organized by domain-specific feature areas for the web application frontend.
+Feature-specific UI components organized by business domain/capability for the web
 ## parent
 index: apps/web/src/components/.pi-map.index.md
 map: apps/web/src/components/.pi-map.md

apps/web/src/components/features/.pi-map.md

@@ -4,10 +4,10 @@ dir: apps/web/src/components/features
 index: apps/web/src/components/features/.pi-map.index.md
 
 ## role
-Reusable UI components organized by domain-specific feature areas for the web application frontend.
+Feature-specific UI components organized by business domain/capability for the web
 ## files
 ## arch
-Feature-based component colocation pattern with domain-driven folder structure, separating shared/common components from page-specific feature implementations.
+Contains 0 files.
 ## tags
 -
 ## symbols

apps/web/src/components/features/terminal/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps/web/src/components/features/terminal
 
 ## role
-Provides responsive, cross-platform terminal UI components with session management, virtual special keys, and WebSocket-backed xterm.js integration for web-based terminal access.
+Provides the UI components for a responsive, multi-session terminal interface in the web app, including desktop and mobile layouts, session tabs, and special-key input controls.
 ## parent
 index: apps/web/src/components/features/.pi-map.index.md
 map: apps/web/src/components/features/.pi-map.md

apps/web/src/components/features/terminal/.pi-map.md

@@ -4,19 +4,19 @@ dir: apps/web/src/components/features/terminal
 index: apps/web/src/components/features/terminal/.pi-map.index.md
 
 ## role
-Provides responsive, cross-platform terminal UI components with session management, virtual special keys, and WebSocket-backed xterm.js integration for web-based terminal access.
+Provides the UI components for a responsive, multi-session terminal interface in the web app, including desktop and mobile layouts, session tabs, and special-key input controls.
 ## files
-- DesktopTerminalView.tsx | Renders a desktop terminal view with session tabs, fullscreen controls, and multiple terminal instances | exp: DesktopTerminalView | dep: react, ./terminal, ./terminal-session-tabs, ../../../api/terminal
-- MobileTerminalView.tsx | Renders a mobile-optimized terminal interface with session tabs, toolbar controls, special keys input, and keyboard-aware layout adjustments. | exp: MobileTerminalView | dep: react, ./terminal, ./terminal-session-tabs, ../../icon, ./special-keys-strip, ./special-keys-panel, ../../../hooks/use-special-keys, ../../../api/terminal, terminal, terminal-session-tabs, icon, special-keys-strip, special-keys-panel, use-special-keys, api/terminal
-- special-keys-panel.tsx | Renders an overlay panel of special keyboard keys (Home, End, F1-F12, Ctrl+C, etc.) that sends terminal sequences when clicked and supports modifier key combinations. | exp: SpecialKeysPanel | dep: react, ../../../hooks/use-special-keys, React, use-special-keys hook
-- special-keys-strip.tsx | Renders a strip of virtual special keys (Esc, Tab, Ctrl, Alt, arrows, etc.) for sending terminal key sequences with optional modifier support. | exp: SpecialKeysStrip | dep: react, ../../../hooks/use-special-keys, use-special-keys hook
-- terminal-session-tabs.test.tsx | Tests a React terminal session tabs component for rendering, selection, closing with confirmation, renaming, session limits, and connection status display. | dep: @testing-library/react, vitest, ./terminal-session-tabs
-- terminal-session-tabs.tsx | Renders an interactive tab bar for managing multiple terminal sessions with selection, renaming, closing, and creation capabilities | exp: TerminalSessionInfo, TerminalSessionTabsProps, TerminalSessionTabs | dep: react, React, useState, useRef, useCallback
-- terminal.tsx | A React terminal component that provides an interactive xterm.js-based terminal with WebSocket connectivity, mobile touch support, and session management. | exp: TerminalProps, TerminalRef, TerminalComponent | dep: react, xterm, xterm-addon-fit, xterm-addon-web-links, xterm/css/xterm.css, ../../../hooks/use-special-keys, React
+- DesktopTerminalView.tsx | Renders the desktop layout for a multi-session terminal UI, managing tabs, fullscreen mode, font controls, and reset confirmation. | exp: DesktopTerminalView | dep: react, ./terminal, ./terminal-session-tabs, ../../../api/terminal, React, TerminalComponent, TerminalSessionTabs, TerminalSession
+- MobileTerminalView.tsx | Renders a mobile-specific terminal interface with session tabs, toolbar controls, special key inputs, and multiple terminal instances. | exp: MobileTerminalView | dep: react, ./terminal, ./terminal-session-tabs, ../../icon, ./special-keys-strip, ./special-keys-panel, ../../../hooks/use-special-keys, ../../../api/terminal, React, TerminalComponent, TerminalSessionTabs, Icon, SpecialKeysStrip, SpecialKeysPanel
+- special-keys-panel.tsx | Renders a modal overlay panel of special keyboard keys (Home, End, F1-F12, Ctrl+C, etc.) that sends escape sequences to a terminal when clicked. | exp: SpecialKeysPanel | dep: react, ../../../hooks/use-special-keys
+- special-keys-strip.tsx | Renders a touch-accessible strip of special keyboard keys (Esc, Tab, arrows, modifiers) that sends terminal escape sequences with optional modifier support. | exp: SpecialKeysStrip | dep: react, ../../../hooks/use-special-keys, React, use-special-keys hook
+- terminal-session-tabs.test.tsx | Unit tests for a TerminalSessionTabs React component covering tab rendering, selection, close confirmation, inline renaming, session limit enforcement, and connection status display. | dep: @testing-library/react, vitest, ./terminal-session-tabs
+- terminal-session-tabs.tsx | Renders a tabbed interface for managing multiple terminal sessions with support for switching, renaming, closing with confirmation, and creating new sessions. | exp: TerminalSessionInfo, TerminalSessionTabsProps, TerminalSessionTabs | dep: react, React
+- terminal.tsx |  | exp: TerminalProps, TerminalRef, TerminalComponent | dep: react, xterm, xterm-addon-fit, xterm-addon-web-links, xterm/css/xterm.css, ../../../hooks/use-special-keys
 ## arch
-Component-based architecture with platform-specific view layers (desktop/mobile), modular special keys subsystems (strip/overlay panel), tab-based session management with React state, and xterm.js integration via WebSocket abstraction with touch/mobile adaptations.
+Modular React component architecture organized by feature, with separate presentational components for desktop/mobile viewports, shared tab/session management, and helper components for terminal input handling.
 ## tags
-terminal, special, keys, session, tabs, react, view, strip
+terminal, special, session, keys, react, tabs, view, strip
 ## symbols
 - DesktopTerminalView
 - MobileTerminalView