Add PyPI and spec version shields to homepage

CHANGELOG.md

@@ -13,6 +13,7 @@ The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/). The
 
 ### Added
 
+- **PyPI + spec-version shields on the docs homepage.** `docs/index.md` now carries dynamic shields for the published PyPI version and the pinned spec version, sourced from `img.shields.io`. Both auto-update on every publish or spec bump; no maintenance burden. Mirrors the same shield URLs the README already uses.
 - **vLLM production deployment notes.** `docs/model-providers/vllm.md` grows a "Production deployment" section covering the `VLLM_HTTP_TIMEOUT_KEEP_ALIVE` gotcha (vLLM's stock 5s uvicorn keep-alive lapses pooled OA-side httpx connections and surfaces as `ProviderUnavailable`; widen to roughly 300s), a systemd unit skeleton, and the three throughput knobs that interact with OA's shared connection pool (`--max-model-len`, `--max-num-seqs`, `--gpu-memory-utilization`). The existing "Tool calling" section grows a `--tool-call-parser` family table verified against vLLM's docs (Llama 3.x / Llama 4 / Mistral / Hermes / Qwen3 / DeepSeek V3 / GPT-OSS), plus explicit "not supported here" callouts for Anthropic / Gemini (proprietary cloud) and mainstream Gemma (no vLLM parser).
 - **Three new patterns docs.** `docs/patterns/state-migration-on-resume.md`, `docs/patterns/caller-supplied-trace-identifiers.md`, and `docs/patterns/observer-state-reconciliation.md` graduate the corresponding entries from `docs/agent/non-obvious-shapes.md` into full pattern recipes with code snippets and "when this is right / when it isn't" guidance. The programmatic patterns API (`openarmature.patterns.list()` / `get(name)`) grows from 4 to 7 entries.
 - **HyperDX OTel integration test path and "Production swap" docs in example 03.** `examples/03-observer-hooks/main.py`'s module docstring grows a "Production swap" section showing how to substitute the demo's `SimpleSpanProcessor` + `ConsoleSpanExporter` for `BatchSpanProcessor` + `OTLPSpanExporter` pointed at HyperDX (or any other OTLP-HTTP collector). A new opt-in integration test (`tests/integration/test_otel_hyperdx_export.py`, gated by `HYPERDX_API_KEY` + `HYPERDX_OTLP_ENDPOINT` env vars and `@pytest.mark.integration`) drives the same production export path end-to-end against a live endpoint. `opentelemetry-exporter-otlp-proto-http` lands as a dev-only dep; not promoted to a public extras group yet.

docs/index.md

@@ -9,6 +9,9 @@ A workflow framework for LLM pipelines and tool-calling agents. Typed
 state, structural graph checks, and observability that doesn't require
 buy-in from every node.
 
+[![PyPI](https://img.shields.io/pypi/v/openarmature.svg?color=blue)](https://pypi.org/project/openarmature/){target="_blank" rel="noopener"}
+[![spec](https://img.shields.io/badge/dynamic/toml?url=https://raw.githubusercontent.com/LunarCommand/openarmature-python/main/pyproject.toml&query=%24.tool.openarmature.spec_version&label=spec&color=9D4EDD)](https://github.com/LunarCommand/openarmature-spec){target="_blank" rel="noopener"}
+
 [Get started](getting-started/index.md){ .md-button .md-button--primary }
 [View on GitHub](https://github.com/LunarCommand/openarmature-python){ .md-button target="_blank" rel="noopener" }