#165 docs(release): describe 0.6.0 Beta

Summary

Release documentation for 0.6.0 Beta, cut from main after #164.

• CHANGELOG.md: the Unreleased section becomes 0.6.0 Beta — 2026-10-27. It now covers every user-visible PR since RC1: the setup and launcher changes, the opt-in rendering, timing and camera options, the fixes, developer tools, known issues and how the release was checked. Before this, it listed about a third of them and said the generation recipe was unchanged.
• README.md: status rows for the 0.6.0 options and launcher, #159 among the known issues, new players start from Launcher.cmd (Launcher.exe exists only after setup), and the bundled-tools line names the release ZIP rather than 0.5.3.
• docs/public-status.md: what 0.6.0 proves. The packaged setup was checked; 0.6.0 itself has not had a full play session.

Verification

• A pre-release ZIP staged from this branch reproduces the RC1 Windows package logic exactly (the staging script rebuilds the shipped RC1 ZIP from v0.6.0-rc1 with no differing members). Its packaged BuildGame run is reported on this PR before merge.
• Facts were checked against the PRs. One example: the macOS launcher-target bug fixed in #164 came from #151 after RC1, so it is not listed as a fix.

Contribution checklist

• The change follows AGENTS.md and CONTRIBUTING.md.
• No XBE, generated game C, retail instruction bytes, extracted assets or filenames, saves, BIOS data, private paths, or run evidence are included.
• Third-party material and its license are identified, if applicable (none).

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Summary by cubic

Releases the 0.6.0 Beta changelog, README status, and public-status notes, and updates the setup success message to point to Launcher.exe and DOAXBV.exe. The changelog records every user-visible change since RC1 and corrects the earlier claim that the generation recipe was unchanged — #141 and #133 changed it, so the release needs a fresh build.

Changes

• README.md adds status rows for the 0.6.0 options and launcher, marks RECOMP_GAME_HZ experimental, names which features were play-tested, lists #159 among known issues, and has new players open Launcher.cmd since Launcher.exe appears only after setup.
• CHANGELOG.md keeps the accepted RECOMP_GAME_HZ range of 60 to 360.
• docs/public-status.md records that the packaged setup regenerated the program byte-for-byte, names which features were and weren't play-tested and by whom, and that 0.6.0 itself has not had a full play session.
• BuildGame.cmd now tells the player to open Launcher.exe or DOAXBV.exe instead of pointing at Launcher.cmd and RunGame.cmd.