chore: Remove content layer, add Content collections #3965

Job	Run time
Lint / Docs	50s
Build / Build	6m 11s
Lint / Code	2m 16s
Test API / API Test Local	4m 43s
Test Packages / Test ./internal/billing	1m 24s
Test Packages / Test ./internal/encryption	1m 11s
Test Packages / Test ./internal/hash	1m 26s
Test Packages / Test ./internal/id	1m 39s
Test Packages / Test ./internal/keys	1m 18s
Test Packages / Test ./internal/resend	1m 13s
Test Packages / Test ./packages/api	1m 32s
Test Packages / Test ./packages/cache	1m 34s
Test Packages / Test ./packages/hono	1m 31s
Test Packages / Test ./packages/nextjs	1m 19s
Test Packages / Test ./packages/nuxt	1m 5s
Test Packages / Test ./packages/rbac	1m 31s
	30m 43s

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