Initial commit: Codex Launcher — Any AI Provider

Multi-provider integration for OpenAI Codex CLI/Desktop.

- Translation proxy: Responses API ↔ Chat Completions / Anthropic Messages
- GTK launcher with endpoint management, provider presets, Desktop/CLI launch
- Codex Default mode (built-in OAuth, zero config)
- Browser UA injection for Cloudflare-protected providers
- Streaming SSE, tool calls, reasoning content support
- Profile backup/import, model auto-fetch, bulk import
- Zero pip dependencies (pure Python stdlib + GTK)

install.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+BIN_DIR="$HOME/.local/bin"
+APP_DIR="$HOME/.local/share/applications"
+
+mkdir -p "$BIN_DIR" "$APP_DIR"
+
+cp "$SCRIPT_DIR/src/translate-proxy.py" "$BIN_DIR/"
+cp "$SCRIPT_DIR/src/codex-launcher-gui" "$BIN_DIR/"
+cp "$SCRIPT_DIR/src/cleanup-codex-stale.sh" "$BIN_DIR/"
+
+chmod +x "$BIN_DIR/translate-proxy.py"
+chmod +x "$BIN_DIR/codex-launcher-gui"
+chmod +x "$BIN_DIR/cleanup-codex-stale.sh"
+
+USERNAME=$(whoami)
+sed "s/YOUR_USERNAME/$USERNAME/g" "$SCRIPT_DIR/src/codex-launcher.desktop.template" > "$APP_DIR/codex-launcher.desktop"
+
+update-desktop-database "$APP_DIR" 2>/dev/null || true
+
+echo "Installed."
+echo "  translate-proxy.py   -> $BIN_DIR/translate-proxy.py"
+echo "  codex-launcher-gui   -> $BIN_DIR/codex-launcher-gui"
+echo "  cleanup-codex-stale  -> $BIN_DIR/cleanup-codex-stale.sh"
+echo "  desktop entry        -> $APP_DIR/codex-launcher.desktop"
+echo ""
+echo "Open 'Codex Launcher' from your app grid, or run: codex-launcher-gui"