feat(plugin-eslint): make patterns input optional with default

[hanna-skryl]

Closes #931

• Made patterns optional in ESLint plugin configuration with default to current directory ('.')
• Made the config parameter of eslintPlugin() optional
• Fixed README artifacts examples (were incorrectly showing artifacts in the first parameter)
• Added unit tests for eslintPluginConfigSchema and eslintTargetSchema
• Added integration tests for optional config scenarios

[nx-cloud]

View your CI Pipeline Execution ↗ for commit d3904e7

Command	Status	Duration	Result
nx run ci:code-pushup -- merge-diffs --files=/h...	✅ Succeeded	5s	View ↗
nx run-many --targets=code-pushup --parallel=fa...	✅ Succeeded	1m 21s	View ↗
nx run-many --targets=code-pushup --parallel=fa...	✅ Succeeded	11m 39s	View ↗
nx run-many -t unit-test,int-test	✅ Succeeded	1m 5s	View ↗

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☁️ Nx Cloud last updated this comment at 2025-12-31 20:15:30 UTC

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commit: d3904e7

[github-actions]

Code PushUp

🤨 Code PushUp report has both improvements and regressions – compared current commit 479886a with previous commit f51d768.

🕵️ See full comparison in Code PushUp portal 🔍

🏷️ Categories

🏷️ Category	⭐ Previous score	⭐ Current score	🔄 Score change
Performance	🔴 41	🔴 40
Documentation	🔴 36	🔴 36
Code coverage	🟡 89	🟡 89
Axe Accessibility	🟡 88	🟡 88
Bug prevention	🟡 67	🟡 67	–
Code style	🟢 99	🟢 99	–
Security	🟡 51	🟡 51	–
Updates	🟡 79	🟡 79	–
Type Safety	🟡 56	🟡 56	–
Miscellaneous	🟡 67	🟡 67	–
Accessibility	🟢 92	🟢 92	–
Best Practices	🟢 100	🟢 100	–
SEO	🟢 92	🟢 92	–

👍 2 groups improved, 👎 1 group regressed, 👍 5 audits improved, 👎 2 audits regressed, 16 audits changed without impacting score

🗃️ Groups

🔌 Plugin	🗃️ Group	⭐ Previous score	⭐ Current score	🔄 Score change
Lighthouse	Performance	🔴 41	🔴 40
JSDocs coverage	Documentation coverage	🔴 36	🔴 36
Code coverage	Code coverage metrics	🟡 89	🟡 89

31 other groups are unchanged.

🛡️ Audits

🔌 Plugin	🛡️ Audit	📏 Previous value	📏 Current value	🔄 Value change
Lighthouse	Speed Index	🟨 5.6 s	🟥 6.4 s
Lighthouse	First Contentful Paint	🟥 3.2 s	🟥 3.0 s
Lighthouse	Time to Interactive	🟥 12.5 s	🟥 12.7 s
Lighthouse	Total Blocking Time	🟥 1,220 ms	🟥 1,190 ms
JSDocs coverage	Variables coverage	🟥 267 undocumented variables	🟥 265 undocumented variables
Code coverage	Branch coverage	🟨 87.2 %	🟨 87.2 %
Code coverage	Line coverage	🟨 84.7 %	🟨 84.7 %
Lighthouse	Minimizes main-thread work	🟥 8.2 s	🟥 8.8 s
Lighthouse	JavaScript execution time	🟥 3.2 s	🟥 3.7 s
Lighthouse	Server Backend Latencies	🟩 1,260 ms	🟩 1,800 ms
Lighthouse	Uses efficient cache policy on static assets	🟨 30 resources found	🟨 30 resources found
Lighthouse	Metrics	🟩 100%	🟩 100%
Lighthouse	Reduce unused CSS	🟥 Potential savings of 95 KiB	🟥 Potential savings of 95 KiB
Lighthouse	Remove duplicate modules in JavaScript bundles	🟥 Potential savings of 105 KiB	🟥 Potential savings of 105 KiB
Lighthouse	Max Potential First Input Delay	🟥 880 ms	🟥 1,040 ms
Lighthouse	Largest Contentful Paint	🟥 11.6 s	🟥 11.8 s
Lighthouse	Reduce unused JavaScript	🟥 Potential savings of 190 KiB	🟥 Potential savings of 190 KiB
Lighthouse	Avoids enormous network payloads	🟩 Total size was 2,065 KiB	🟩 Total size was 2,065 KiB
JS packages	Vulnerabilities for npm dev dependencies.	🟥 24 vulnerabilities (3 critical, 6 high, 9 moderate, 6 low)	🟥 40 vulnerabilities (3 critical, 23 high, 8 moderate, 6 low)
Lighthouse	Initial server response time was short	🟩 Root document took 470 ms	🟩 Root document took 460 ms
TypeScript	Semantic errors	🟥 2581 errors	🟥 2590 errors
Lighthouse	Network Round Trip Times	🟩 30 ms	🟩 20 ms
Lighthouse	Cumulative Layout Shift	🟩 0	🟩 0

656 other audits are unchanged.

[github-actions]

Code PushUp

🥳 Code PushUp report has improved – compared current commit 479886a with previous commit f51d768.

💼 Project plugin-eslint

🥳 Code PushUp report has improved.

🕵️ See full comparison in Code PushUp portal 🔍

🏷️ Category	⭐ Previous score	⭐ Current score	🔄 Score change
Documentation	🟡 66	🟡 67
Code coverage	🟢 94	🟢 94

4 other categories are unchanged.

👍 2 groups improved, 👍 3 audits improved

🗃️ Groups

🔌 Plugin	🗃️ Group	⭐ Previous score	⭐ Current score	🔄 Score change
JSDocs coverage	Documentation coverage	🟡 66	🟡 67
Code coverage	Code coverage metrics	🟢 94	🟢 94

13 other groups are unchanged.

🛡️ Audits

🔌 Plugin	🛡️ Audit	📏 Previous value	📏 Current value	🔄 Value change
JSDocs coverage	Variables coverage	🟥 15 undocumented variables	🟥 13 undocumented variables
Code coverage	Branch coverage	🟨 84.7 %	🟨 85.2 %
Code coverage	Line coverage	🟩 92.5 %	🟩 92.6 %

441 other audits are unchanged.

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13 other projects are unchanged.