New engine docs

[saminacodes]

CORE-0000

---

PR-Codex overview

This PR focuses on updating the documentation and features for the thirdweb Engine, including the introduction of Vault, enhancements to wallet management, and improvements to the overall user experience with new guides and FAQs.

Detailed summary

• Removed outdated .mdx files.
• Added new Vault documentation with features and FAQs.
• Updated existing guides to reflect changes in wallet configurations.
• Enhanced sidebar navigation for Engine and Vault.
• Introduced Engine Version Selector for easier version management.
• Updated references to backend wallets and access tokens throughout the documentation.

The following files were skipped due to too many changes: apps/portal/src/app/engine/v3/page.mdx, apps/portal/src/app/engine/v2/page.mdx, apps/portal/src/app/engine/self-host/page.mdx, apps/portal/src/app/vault/key-concepts/key-management/page.mdx, apps/portal/src/app/vault/security/page.mdx, apps/portal/src/app/engine/v3/get-started/page.mdx

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[changeset-bot]

⚠️ No Changeset found

Latest commit: 40d16ac

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Name	Status	Preview	Comments	Updated (UTC)
docs-v2	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 7, 2025 8:31pm
login	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 7, 2025 8:31pm
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wallet-ui	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 7, 2025 8:31pm

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.02%. Comparing base (ec50f8c) to head (f392aed).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6951   +/-   ##
=======================================
  Coverage   55.02%   55.02%           
=======================================
  Files         898      898           
  Lines       57352    57352           
  Branches     3969     3969           
=======================================
  Hits        31560    31560           
  Misses      25692    25692           
  Partials      100      100           

Flag	Coverage Δ
packages	55.02% <ø> (ø)

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[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
thirdweb (esm)	53.77 KB (0%)	1.1 s (0%)	296 ms (+120.95% 🔺)	1.4 s
thirdweb (cjs)	144.21 KB (0%)	2.9 s (0%)	489 ms (+33.69% 🔺)	3.4 s
thirdweb (minimal + tree-shaking)	5.68 KB (0%)	114 ms (0%)	111 ms (+672.77% 🔺)	225 ms
thirdweb/chains (tree-shaking)	524 B (0%)	11 ms (0%)	38 ms (+652.31% 🔺)	48 ms
thirdweb/react (minimal + tree-shaking)	19.48 KB (0%)	390 ms (0%)	116 ms (+298.21% 🔺)	505 ms

[graphite-app]

There's a minor grammatical error in this sentence. It should read "Service Accounts can be used" rather than "Service Accounts can used" to maintain proper verb tense structure.

Suggested change

	Service Accounts can used in combination with access-tokens to build non-custodial programmable access control for your enterprise applications.
	Service Accounts can be used in combination with access-tokens to build non-custodial programmable access control for your enterprise applications.

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