Initial commit: hqt — HQ Terminal TUI

TUI for orchestrating AI coding harness sessions (Claude Code, Codex,
Kiro, etc.) via tmux. Click CLI bootstraps a Textual TUI over
ProjectService/SessionService backed by SQLite, spawning harness
sessions as tmux windows through TmuxManager.

Includes recent fixes:
- Visible Tab focus highlight on dialog OK/Cancel buttons
- Auto-select first project on launch
- Auto-select first session + per-project session-selection memory
- tmux new-window targets an explicit free index, fixing
  "index N in use" failures (broken spawn/attach in attached sessions)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

README.md

@@ -0,0 +1,37 @@
+# hqt — HQ Terminal
+
+A TUI for orchestrating AI coding harness sessions (Claude Code, Kiro, Aider, etc.) via tmux.
+Manage multiple AI sessions across projects from a single terminal interface.
+
+## Quick Start
+
+```bash
+uv pip install -e .
+hqt
+```
+
+## Commands
+
+| Command | Description |
+|---------|-------------|
+| `hqt` | Launch the TUI (inside tmux) |
+| `hqt doctor` | Check system requirements |
+| `hqt list` | List projects and sessions |
+
+## Key Bindings
+
+| Key | Action |
+|-----|--------|
+| `q` | Quit |
+| `n` | New session |
+| `a` | Add project |
+| `e` | Edit project |
+| `Tab` | Switch panel |
+| `d` | Delete session |
+| `Enter` | Attach to session (auto-resumes if not running) |
+| `r` | Rename session |
+| `s` | Stop session |
+
+## Architecture
+
+hqt uses a layered architecture: a Click CLI bootstraps into a Textual TUI, which drives service classes (ProjectService, SessionService) backed by SQLite via SQLAlchemy. Sessions are spawned as tmux windows through TmuxManager, with harness-specific configuration provided by pluggable HarnessConfigurator implementations discovered at runtime.