chore: strip comments from tsconfigs for Snyk JSON parsing

[JuroUhlar]

• Remove JSON comments from tsconfig files so Snyk can parse them as strict JSON
• Keep only active options in the Preact example tsconfig (drop the commented template)

Snyk import was failing on these files with "Unable to parse json file".

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟢	Statements	82.43%	122/148
🟡	Branches	68.97%	60/87
🟢	Functions	80.85%	38/47
🟢	Lines	82.52%	118/143

Test suite run success

23 tests passing in 15 suites.

Report generated by 🧪jest coverage report action from e605ed0

Show full coverage report

St	File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
🟢	All files	82.43	68.96	80.85	82.51
🟢	src	88.52	74.07	83.33	88.33
🟢	detect-env.ts	90	83.33	100	90	15,87
🟢	env.ts	100	100	100	100
🟢	env.types.ts	83.33	0	50	83.33	14
🟡	...nt-context.ts	75	100	0	75	8
🟡	get-env.ts	60	0	100	60	8-9
🟢	ssr.ts	100	100	100	100
🟢	...sitor-data.ts	95.65	100	80	95.65	102
🟢	src/components	91.66	58.33	91.66	91.17
🟢	...-provider.tsx	90.32	54.54	90.9	89.65	47,52,85
🟢	...vironment.tsx	100	100	100	100
🟡	src/utils	68.62	72.22	70.58	69.38
🟡	...is-defined.ts	50	75	100	50	3
🟢	...-cache-key.ts	80.76	83.33	85.71	84	5,10,43,52
🟡	to-error.ts	66.66	50	100	66.66	6
🟢	...mise-store.ts	100	100	100	100
🔴	wait-until.ts	0	0	0	0	8-19

[JuroUhlar]

@copilot resolve the merge conflicts in this pull request

[Copilot]

@copilot resolve the merge conflicts in this pull request

Resolved. The only conflict was in examples/preact/tsconfig.json — merged main's updated values ("target": "ES2015", "moduleResolution": "bundler") with this PR's comment-stripped format. Commit: e605ed0.

[github-actions]

🚀 Following releases will be created using changesets from this PR:

@fingerprint/react@3.1.0

Minor Changes

• Add support for React 19 and Next.js 16. The react peer range now accepts >=18 <20. (5307b3b)

Patch Changes

• Bump @fingerprint/agent dependency to ^4.1.2 and drop the fast-deep-equal runtime dependency in favor of an internal cache-key comparison. (87b776f)