Ensure conf type for createServer is not changed

[ijjk]

This reverts the type for the conf field in ServerOptions isn't changed to require all NextConfig values as this is a breaking change from what was previously required. We should investigate making sure this field is normalized when it is provided via a user.

Bug

• Related issues linked using fixes #number
• Integration tests added
• Errors have helpful link attached, see contributing.md

Fixes: #32123
x-ref: #31858

[ijjk]

Stats from current PR

Default Build (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
buildDuration	21.1s	21.1s	⚠️ +17ms
buildDurationCached	3.9s	3.9s	⚠️ +11ms
nodeModulesSize	347 MB	347 MB	⚠️ +197 B

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
/ failed reqs	0	0	✓
/ total time (seconds)	3.423	3.418	0
/ avg req/sec	730.28	731.32	+1.04
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.529	1.588	⚠️ +0.06
/error-in-render avg req/sec	1634.66	1573.97	⚠️ -60.69

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	28.4 kB	28.4 kB	✓
webpack-HASH.js gzip	1.45 kB	1.45 kB	✓
Overall change	72.3 kB	72.3 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
_app-HASH.js gzip	1.37 kB	1.37 kB	✓
_error-HASH.js gzip	194 B	194 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	326 B	326 B	✓
dynamic-HASH.js gzip	2.38 kB	2.38 kB	✓
head-HASH.js gzip	350 B	350 B	✓
hooks-HASH.js gzip	635 B	635 B	✓
image-HASH.js gzip	4.49 kB	4.49 kB	✓
index-HASH.js gzip	263 B	263 B	✓
link-HASH.js gzip	1.87 kB	1.87 kB	✓
routerDirect..HASH.js gzip	321 B	321 B	✓
script-HASH.js gzip	383 B	383 B	✓
withRouter-HASH.js gzip	318 B	318 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	13.3 kB	13.3 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
_buildManifest.js gzip	460 B	460 B	✓
Overall change	460 B	460 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
index.html gzip	532 B	532 B	✓
link.html gzip	545 B	545 B	✓
withRouter.html gzip	526 B	526 B	✓
Overall change	1.6 kB	1.6 kB	✓

---

Default Build with SWC (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
buildDuration	22.6s	22.7s	⚠️ +146ms
buildDurationCached	3.9s	3.9s	-23ms
nodeModulesSize	347 MB	347 MB	⚠️ +197 B

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
/ failed reqs	0	0	✓
/ total time (seconds)	3.41	3.413	0
/ avg req/sec	733.14	732.56	⚠️ -0.58
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.585	1.633	⚠️ +0.05
/error-in-render avg req/sec	1577.71	1530.99	⚠️ -46.72

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.3 kB	42.3 kB	✓
main-HASH.js gzip	28.6 kB	28.6 kB	✓
webpack-HASH.js gzip	1.44 kB	1.44 kB	✓
Overall change	72.5 kB	72.5 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
_app-HASH.js gzip	1.35 kB	1.35 kB	✓
_error-HASH.js gzip	180 B	180 B	✓
amp-HASH.js gzip	305 B	305 B	✓
css-HASH.js gzip	321 B	321 B	✓
dynamic-HASH.js gzip	2.37 kB	2.37 kB	✓
head-HASH.js gzip	342 B	342 B	✓
hooks-HASH.js gzip	622 B	622 B	✓
image-HASH.js gzip	4.53 kB	4.53 kB	✓
index-HASH.js gzip	256 B	256 B	✓
link-HASH.js gzip	1.9 kB	1.9 kB	✓
routerDirect..HASH.js gzip	314 B	314 B	✓
script-HASH.js gzip	375 B	375 B	✓
withRouter-HASH.js gzip	309 B	309 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	13.3 kB	13.3 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
_buildManifest.js gzip	458 B	458 B	✓
Overall change	458 B	458 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js update/public-conf-type	Change
index.html gzip	531 B	531 B	✓
link.html gzip	544 B	544 B	✓
withRouter.html gzip	525 B	525 B	✓
Overall change	1.6 kB	1.6 kB	✓

Commit: 5e29004