[codex] Prepare v0.7.0 release

[devallibus]

Summary

This PR is the dedicated v0.7.0 release-prep step after the Electrobun milestone feature work landed and the follow-up doc rebaseline merged in #168.

The user-facing goal here is not new functionality. It is to make the repository publishable and reviewable as the 0.7.0 release line by aligning the package/crate/template version surfaces and by turning the current Unreleased notes into a concrete 0.7.0 changelog entry.

Root cause

After the Electrobun workstream merged, the repo still had a split state:

• shipped code and docs already reflected the new v0.7.0 surface
• publishable package/crate manifests still reported 0.6.0
• scaffold templates still depended on the 0.6.0 package line
• the changelog content existed only under Unreleased, which is not the right state for a release-prep PR

Without this prep step, the next tag would not line up with the published manifest versions or the generated-template dependency expectations.

Fix

This PR:

• bumps the workspace Rust version line from 0.6.0 to 0.7.0
• updates the internal webtau -> webtau-macros dependency pin to =0.7.0
• bumps the three publishable npm packages to 0.7.0
• updates scaffold template dependencies so generated projects reference webtau / webtau-vite ^0.7.0
• promotes the current Unreleased Electrobun entry into a dated 0.7.0 changelog section
• expands that changelog entry to mention the Battlestation runtime lanes and the Electrobun smoke/release-gate lane, so the release notes match what shipped between v0.6.0 and today

Validation

I validated this PR with:

• cargo check
• bun run test
• git diff --check

Note: an initial bun run vitest run attempt failed because this repo does not expose a root vitest script; I then reran the correct repo-level test entrypoint with bun run test, which passed.

Milestone context

Refs #162.

At this point milestone 11 is down to the umbrella tracker only. This PR is the release-prep step that follows the completed feature/docs work.

[devallibus]

Review: [codex] Prepare v0.7.0 release

Verdict: Ship it. This is a clean, correctly-scoped release-prep PR. I verified every version surface and found no omissions or inconsistencies.

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Version surface audit (11/11 ✓)

Surface	File	Old	New	Status
Workspace Cargo	Cargo.toml	0.6.0	0.7.0	✓
webtau-macros pin	crates/webtau/Cargo.toml	=0.6.0	=0.7.0	✓
webtau npm	packages/webtau/package.json	0.6.0	0.7.0	✓
webtau-vite npm	packages/webtau-vite/package.json	0.6.0	0.7.0	✓
create-gametau npm	packages/create-gametau/package.json	0.6.0	0.7.0	✓
base template (webtau)	templates/base/package.json	^0.6.0	^0.7.0	✓
base template (webtau-vite)	templates/base/package.json	^0.6.0	^0.7.0	✓
pixi template	templates/pixi/package.json	^0.6.0	^0.7.0	✓
three template	templates/three/package.json	^0.6.0	^0.7.0	✓
base commands Cargo	templates/base/src-tauri/commands/Cargo.toml	0.6.0	0.7.0	✓
base wasm Cargo	templates/base/src-tauri/wasm/Cargo.toml	0.6.0	0.7.0	✓

Stale-reference sweep: Grepped the entire repo for 0.6.0 across all Cargo.toml and package.json files — zero hits. Clean.

Examples unaffected (correct): All four examples (counter, pong, battlestation, electrobun-counter) use path deps for Rust crates and workspace:* for npm — they inherit the workspace version automatically and don't need explicit bumps.

Changelog review ✓

• [Unreleased] section retained and empty — correct Keep a Changelog form.
• [0.7.0] - 2026-03-06 dated to today.
• Added section expanded to cover Battlestation runtime lanes and the hybrid WGPU showcase path — this was missing from the prior Unreleased text and is a good addition.
• Changed section adds the CI/release-gate requirement for Electrobun Hybrid + GPU Smoke — accurately reflects what changed between v0.6.0 and now.
• Content is consistent with the commit history (#167, #168) that landed the Battlestation GPUWindow and Electrobun doc rebaseline work.

Scope ✓

Single commit, +18/−14, 11 files. No code changes, no logic changes, no test changes — pure version + changelog metadata. Exactly what a release-prep PR should be.

PR description ✓

Root cause → fix → validation → milestone context. The note about bun run vitest run vs bun run test is helpful for future codex runs against this repo.

One non-blocking nit

Mixed line endings: The commit introduces LF-only lines into files whose existing lines are CRLF (Cargo.toml, CHANGELOG.md both report ASCII text, with CRLF, LF line terminators). There is no .gitattributes in the repo to normalize. The local core.autocrlf=true setting handles checkout, but the codex agent that authored the commit likely ran with a different setting. This is cosmetic and won't cause functional issues, but could produce diff noise in future edits. Consider adding a root .gitattributes with * text=auto as a follow-up — not a blocker for this PR.

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Summary: All publishable version surfaces are aligned at 0.7.0, no stale references exist, the changelog accurately reflects the v0.6.0→v0.7.0 delta, and the scope is appropriately minimal. Ready to merge, close #162, and tag.

— Claude Opus 4.6 (1M context)