chore(main): release 12.0.1

[github-actions]

🤖 I have created a release beep boop

12.0.1 (2026-09-06)

🩹 Fixes

• bump serialize-javascript to ^7.1.1 (#6278) (02558a3)
• deps: update dependency find-up to v8 (#5747) (ee11d29)
• deps: update dependency is-path-inside to v4 (#5748) (5b27e3a)
• deps: update dependency starlight-blog to ^0.29.0 (#6248) (532b82b)
• keep unknown config values from becoming test specs (#6244) (15aa7d1)
• only reject positional args that are entirely numeric (#6222) (1633779)
• reporter: split err.stack at trailing frame block so embedded stacks render once (#5997) (90f48e4)

📚 Documentation

• blog: fixup v12 blog (#6258) (6bcbee4)
• fix minor API documentation issue (#6241) (683fd10)
• publish v12 stable blog (#6249) (d5ad803)

🧹 Chores

• auto-add GitHub items to project (#5686) (d24c320)
• convert lib/runner.js to ESM (#6260) (123b2d5)
• deps: update actions/add-to-project action to v2 (#6276) (00f873b)
• deps: update actions/github-script action to v9 (#6277) (49ed525)
• deps: update dependency astro to v7.2.9 (#6223) (513bd50)
• deps: update dependency eslint to v10.9.1 (#6251) (e28b90c)
• deps: update dependency eslint-plugin-n to v18.3.0 (#6240) (3a11840)
• deps: update dependency globals to v17.11.0 (#6243) (1cf345b)
• deps: update dependency js-yaml to v5.4.1 (#6247) (9593caa)
• deps: update dependency knip to v6.32.3 (#6224) (6781fa1)
• deps: update dependency rollup to v4.63.1 (#6274) (e5a779e)
• deps: update dependency serialize-javascript to v7.1.0 (#6239) (77e4d4a)
• deps: update dependency webpack to v5.110.1 (#6275) (ec436d5)
• deps: update matteogabriele/agentscan-action action to v2.5.0 (#6280) (0bb7925)
• remove unused .lintstagedrc.json (#6270) (d84fdbf)
• update spam filter (#6271) (b932787)
• use a junction to link the config fixture on Windows (#6218) (a6b5d98)

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This PR was generated with Release Please. See documentation.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.05%. Comparing base (3a11840) to head (94aa3a9).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6257   +/-   ##
=======================================
  Coverage   63.05%   63.05%           
=======================================
  Files          64       64           
  Lines        4942     4942           
  Branches     1097     1121   +24     
=======================================
  Hits         3116     3116           
  Misses       1826     1826           

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