v0.6.0 public

Minor, public launch. Corpus breadth and public compat page: v3 corpus, /compat, minimal benchmark table, compat libs.

Exit criteria (the public gate, from .agents/plans/2026-10-21-go-public-readiness.md):

• Public compat page live from nightlies, green for 7 days. Blocked by #394 (the nightly snapshot step fails) and #395 (the Pages deploy has no credentials).
• Runtime object cache under 1 s compile, onefile cold start under 2 s.
• 5 realistic end-to-end examples, byte-identical against CPython.
• Minimal benchmark table with the method stated.
• Windows and aarch64 labeled honestly in the install table.
• Post-publish PyPI smoke, the site page, the comparison paragraph (scriptc, Nuitka, Cython, mypy, Codon), Substack and Show HN drafts.
• 3 days post-launch triage buffer.
• Milestone has 0 open issues and a measured receipt (corpus census delta).

Open work: #192 (changelog sections), #249 (Windows portability), #313 (wasm32-wasi, stacked on #249), #312 (the WASM epic), #394 (nightly snapshot step), #395 (Pages deploy).