otaku 0.1.1

Initial public release. (0.1.0 was a premature PyPI upload from a pre-release
tree — it was never tagged and is superseded by 0.1.1.)

Added

• Multi-backend client for Ollama, LM Studio, MLX (omlx), and any
  OpenAI-compatible server — from one terminal command.
• Zero-config first run: the initial ~/.otaku/config.toml auto-detects each
  built-in engine's port (and omlx's API key) from your environment
  (OLLAMA_HOST) or the engine's own settings file, falling back to the
  standard default. Runs once, at that first write; edit the sections freely
  afterwards.
• Cross-provider model management: otaku list (with --running to show only
  loaded models), load and unload from the picker, otaku stop --all, with a
  live RAM gauge. Provider queries run concurrently with a short (0.5s) probe
  timeout, so one configured-but-down provider no longer slows every command;
  when nothing is reachable, otaku names each provider, whether it answered,
  and points at ~/.otaku/config.toml to fix.
• Chat REPL: streaming responses, thinking-effort control, tok/s stats
  (/set verbose, off by default), triple-quoted multiline input, in-chat
  model switching (/model), /new (fresh conversation) vs /clear (reset
  context in place), and slash commands.
• Streaming markdown rendering: headers, lists, blockquotes, rules, and fenced
  code blocks (syntax-highlighted via Pygments) on top of inline emphasis/code.
• omlx output smoothing ([providers.omlx].smooth, default on): de-jitters
  omlx's bursty token delivery into steady typing, without affecting tok/s.
• Persistent session defaults: a [defaults] config section (system, think,
  parameters, no_record) plus per-model overrides keyed by bare model name;
  /remember saves the current settings as the model's defaults.
• One-shot / pipe mode: otaku <model> "prompt" and … | otaku <model>
  print a plain reply and exit (prompt + stdin combined instruction-first),
  so otaku works as a Unix filter.
• Encrypted conversation history (AES-256-GCM), searchable across all
  conversations by full message content, with background LLM-generated
  summaries (idle-debounced so they never block exit or reload a cold model;
  [defaults].create_summaries / summary_idle_seconds), user-set titles
  (/title, shown in the /history picker), and resume-from-any-turn.
• Get answers out: /copy (last reply or whole chat → clipboard, via the native
  tool or an OSC 52 fallback) and /save <file> (conversation → Markdown).
• Install via uv tool install or Homebrew (brew install enclavum/tap/otaku).
• Runs on macOS, Linux, and Windows. On Windows the streaming-time Ctrl+R
  (cancel + regenerate) shortcut is disabled — it needs a POSIX terminal — but
  everything else works; WSL gives full parity.