Phase 1 v1 production-readiness — final closure (CI + PyPI + fixtures + Allegro audit)

[RFingAdam]

Status

The original v1 production-readiness plan (docs/superpowers/plans/2026-03-12-v1-production-ready.md) is mostly complete: CI workflows exist (lint / typecheck / test on 3.10/11/12), errors module is in place, type hints are present, Allegro parser exists. Closing this issue requires a final audit pass.

Acceptance criteria

• .github/workflows/ci.yml runs ruff with a pinned version (depends on #pin-ruff).
• .github/workflows/release.yml configured for PyPI publishing on tag push (already exists — verify it works).
• tests/fixtures/ covers every parser format: KiCad layout ✓, KiCad sch (new — depends on fixture corpus issue), Gerber ✓, IPC-2581 ✓, Altium stub (new), ODB++ (synthetic — already in tests), Allegro ✓, schematic PDF (new).
• test_all_tools_smoke.py covers 100% of registered MCP tools (parity check already in place).
• CI green on a fresh PR.
• pip install -e ".[dev]" brings in ruff + mypy + pytest pinned to working versions.
• Coverage stays at or above 50% (CI fail-under threshold).

[RFingAdam]

Closed by PR #125 (commit ab37f5a). All CI checks (lint / typecheck / test 3.10-3.12) green.