INTER-2492: Remove postinstall script and detect framework at runtime

[erayaydin]

pnpm 10+ blocks install scripts by default, so pnpm users hit:

[ERR_PNPM_IGNORED_BUILDS] Ignored build scripts: @fingerprint/react

and silently got no framework info in integrationInfo at all. The script only stamped the framework name and version into the published bundle.

With this change also: integrationInfo for React apps goes from react-sdk/<sdk>/react to react-sdk/<sdk>/react/<react>. Next.js is unchanged. Preact reports no version.

Preact

Preact exposes no version at runtime, so this drops exact Preact versions from analytics. For now, going with name-only.

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟢	Statements	96.79% (+0.39% 🔼)	151/156
🟢	Branches	95.51% (+0.71% 🔼)	85/89
🟢	Functions	97.78% (-0.14% 🔻)	44/45
🟢	Lines	97.33% (+0.44% 🔼)	146/150

Test suite run success

41 tests passing in 15 suites.

Report generated by 🧪jest coverage report action from 35454c7

Show full coverage report

St	File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
🟢	All files	96.79	95.5	97.77	97.33
🟢	src	100	100	100	100
🟢	detect-env.ts	100	100	100	100
🟢	env.types.ts	100	100	100	100
🟢	...nt-context.ts	100	100	100	100
🟢	ssr.ts	100	100	100	100
🟢	...sitor-data.ts	100	100	100	100
🟢	src/components	100	100	100	100
🟢	...-provider.tsx	100	100	100	100
🟢	...vironment.tsx	100	100	100	100
🟢	src/utils	88.09	87.5	92.3	90
🟢	...is-defined.ts	100	100	100	100
🟢	...-cache-key.ts	80.76	83.33	85.71	84	5,10,43,52
🟢	to-error.ts	100	100	100	100
🟢	...mise-store.ts	100	100	100	100

[Copilot]

🟢 Approval recommended

The install-time mechanism is cleanly removed, and the runtime behavior is consistently implemented and tested.

Pull request overview

Removes install-time framework stamping and performs framework/version detection at runtime, avoiding pnpm 10 ignored-build warnings.

Changes:

• Removes the postinstall detection script and generated environment modules.
• Reports the runtime React version while leaving Next.js and Preact behavior intact.
• Updates tests and release notes for the new analytics format.

File summaries

File	Description
.changeset/lucky-donuts-repeat.md	Documents the minor release behavior change.
package.json	Removes the postinstall script and scripts package content.
scripts/detect-env.js	Deletes install-time framework detection.
src/get-env.ts	Removes build-time environment parsing.
src/env.ts	Removes the build-time placeholder.
src/env.types.ts	Removes the obsolete environment validator.
src/detect-env.ts	Adds runtime React version reporting.
src/components/with-environment.tsx	Uses runtime detection directly.
__tests__/detect-env.test.ts	Updates runtime detection expectations.
__tests__/fpjs-provider.test.tsx	Verifies React version in integration metadata.
__tests__/with-environment.preact.test.tsx	Verifies Preact reports no compatibility version.

Review details

• Files reviewed: 11/11 changed files
• Comments generated: 0
• Review effort level: Balanced

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[TheUnderScorer]

Looks good, thanks! I left just one suggestion regarding the changeset.

[github-actions]

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

@fingerprint/react@3.2.0

Minor Changes

• Remove the postinstall script for detecting framework version. (fe6d9e1)