release: prepare v1.5.2 (versionName 1.5.2, new release notes)

[zero2005x]

Why

The v1.5.1 Release run failed before publishing (fixed in #13), and Play already serves 1.5.1 as versionCode 10. Rather than move the v1.5.1 tag, the build that carries #10 ships as v1.5.2, and the existing v1.5.1 tag is left untouched.

Changes

• app, glass-hud: versionName 1.5.1 -> 1.5.2. versionCode stays 11 / 8; neither has been published anywhere.
• doc/RELEASE_NOTES_v1.5.2.md (new, bilingual). The release workflow publishes doc/RELEASE_NOTES_<tag>.md, so this is the GitHub Release body. It covers 1.5.0 through 1.5.2, since this is the first GitHub Release since v1.4.0, and includes the Play "What's new" text.
• doc/RELEASE_NOTES_v1.5.1.md: restored to the content at 8b91f73, i.e. what Play's 1.5.1 (versionCode 10 / 7) actually shipped. release: bump to versionCode 11 / 8 for the next Play upload #12 had edited it for versionCode 11, which no longer applies.

No source change beyond the two version strings.

Notes on the release notes

• The experimental warning is limited to what I can support: model detection is covered by unit tests only, and Ninebot-family support rests on static reverse engineering (per feat(model): per-model board addressing, from m365 Tools reverse engineering #10). I did not make a blanket claim about the whole protocol stack.
• The Play text deliberately has no "more reliable Bluetooth" bullet. The GATT lookup change widens discovery, but nothing here shows it improves reliability.
• Section 4 describes the release-workflow fix from fix(ci): don't let the clean no-credentials scan result abort the release #13, so merge fix(ci): don't let the clean no-credentials scan result abort the release #13 first (or together).

Before tagging v1.5.2

• fix(ci): don't let the clean no-credentials scan result abort the release #13 merged (the release workflow fails without it)
• This PR merged
• Tag the merge commit on main and push only that tag
• If versionCode 11 has already been uploaded to Play, bump to 12 / 9 first. Play rejects a repeated versionCode.

🤖 Generated with Claude Code

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud