chore(release): v1.12.0 "Refraction"

[doublegate]

Summary

• Version bump: workspace + all 12 individually-versioned crates 1.11.0 → 1.12.0.
• CHANGELOG: [Unreleased] → dated ## [1.12.0] "Refraction" - 2026-07-12 section.
• docs/STATUS.md: current-release pointer + summary paragraph extended to cover v1.12.0.
• to-dos/VERSION-PLAN.md/to-dos/ROADMAP.md: v1.12.0 rung marked RELEASED 2026-07-12.

Closes out #94 (feat(frontend): v1.12.0 "Refraction" - xBRZ post-filter + gfx-shaders crate extraction).

Test plan

• cargo fmt --check
• cargo clippy --workspace --all-targets -- -D warnings
• cargo test --workspace (all green)
• markdownlint-cli2 on every touched doc — identical error count vs. origin/main baseline (85), zero new findings
• Cargo.lock regenerated via cargo check --workspace, confirmed rustysnes-gfx-shaders resolves at 1.12.0

🤖 Generated with Claude Code

[gemini-code-assist]

Code Review

This pull request bumps the workspace and crate versions from 1.11.0 to 1.12.0 for the v1.12.0 "Refraction" release. It updates the CHANGELOG.md, Cargo.lock, and various Cargo.toml files, alongside documentation in docs/STATUS.md, to-dos/ROADMAP.md, and to-dos/VERSION-PLAN.md to reflect the release of the new PostFilter::Xbrz post-filter and the extraction of the rustysnes-gfx-shaders crate. There are no review comments, and I have no feedback to provide.

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[Copilot]

Pull request overview

Release-prep PR for RustySNES v1.12.0 “Refraction”, updating workspace/crate versions and rolling the relevant release documentation forward to the 2026-07-12 cut.

Changes:

• Bump workspace version and per-crate versions to 1.12.0, and refresh Cargo.lock accordingly.
• Promote CHANGELOG entries from [Unreleased] into v1.12.0 "Refraction" - 2026-07-12.
• Update release pointers/status and roadmap/plan docs to mark v1.12.0 as released.

Reviewed changes

Copilot reviewed 17 out of 18 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
to-dos/VERSION-PLAN.md	Marks v1.12.0 rung as released and expands delivered/deferred notes.
to-dos/ROADMAP.md	Updates roadmap narrative to reflect v1.12.0 release contents and date.
docs/STATUS.md	Advances “Current release” pointer to v1.12.0 and extends the parity-ladder summary.
crates/rustysnes-test-harness/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-script/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-savestate/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-ppu/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-netplay/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-gfx-shaders/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-frontend/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-cpu/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-core/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-cheevos/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-cart/Cargo.toml	Bumps crate version to 1.12.0.
crates/rustysnes-apu/Cargo.toml	Bumps crate version to 1.12.0.
CHANGELOG.md	Adds the v1.12.0 dated section and associates the listed additions with that release.
Cargo.toml	Updates [workspace.package] version to 1.12.0.
Cargo.lock	Updates resolved workspace crate versions to 1.12.0.