v0.2.0

First PyPI release: pip install pith-optimizer, then pith demo runs the whole loop in a second with no API key.

• Output-token control plane: proxy, sweep CLI with an LLM judge, noise floor, per-item majority, aliasing of identical requests, holdout confirmation, cost gate and amortisation, recheck against the bar the pin used.
• Shape text v2 (concision only) with pins tied to the text version.
• Adapters: LiteLLM guardrail, Headroom extension, Portkey webhook, each with a mock-backed live test and a weekly integration workflow.
• Live benchmark results and the full decision rule in the README and docs/methodology.md.