chore: release v2.13.0

[mise-en-dev]

🚀 Features

• (release) add LLM-generated prose summary to release notes by @jdx in #421
• add LLM-generated release notes for GitHub releases by @jdx in #423
• add spec lint command by @jdx in #430

🐛 Bug Fixes

• replace unsafe path unwrap chains with proper error handling by @jdx in #424
• pass positional args through to executed scripts by @jdx in #425
• replace unimplemented!() with proper errors for unsupported shells by @jdx in #432
• update claude CLI model and add bypassPermissions by @jdx in #435

🚜 Refactor

• remove unused double-shebang support by @jdx in #426
• replace once_cell with std::sync::LazyLock by @jdx in #428
• improve code quality with safety and lint fixes by @jdx in #427

⚡ Performance

• use Arc for flag/arg keys in ParseOutput to reduce cloning by @jdx in #422

🔍 Other Changes

• update insta snapshots to newer format by @jdx in #429
• fix legacy inline snapshot format warnings by @jdx in #433
• replace TODO with doc comment for subcommand_lookup by @jdx in #434

📦️ Dependency Updates

• update actions/setup-node digest to 6044e13 by @renovate[bot] in #419
• replace dependency @tsconfig/node22 with @tsconfig/node24 by @renovate[bot] in #418

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.42%. Comparing base (2cd5def) to head (378ee15).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #420      +/-   ##
==========================================
+ Coverage   46.63%   47.42%   +0.78%     
==========================================
  Files          46       47       +1     
  Lines        6546     6651     +105     
  Branches     6546     6651     +105     
==========================================
+ Hits         3053     3154     +101     
- Misses       1732     1737       +5     
+ Partials     1761     1760       -1     

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