docs: add missing SEO frontmatter to docs pages

src/pages/changelog.md

@@ -1,3 +1,8 @@
+---
+title: Tempo Changelog
+description: Track Tempo releases, protocol changes, and version history from the core repository so you can review what shipped, when it landed, and what changed next.
+---
+
 # Changelog
 
 ::changelog

src/pages/guide/use-accounts/batch-transactions.mdx

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+---
+title: Batch Transactions
+description: Batch multiple Tempo operations into a single atomic transaction to reduce gas costs, avoid partial failures, and deliver smoother end-user payment flows.
+---
+
 # Batch Transactions
 
 One of the most powerful features of the [Tempo Transaction](/protocol/transactions/spec-tempo-transaction) type is batching multiple operations into a single transaction. This allows you to execute several actions atomically (i.e., they all succeed or all fail together). This helps reduce gas costs, prevents partial failures, and creates better user experiences by combining multiple steps into one transaction.

src/pages/guide/use-accounts/scheduled-transactions.mdx

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+---
+title: Scheduled Transactions
+description: Use validAfter and validBefore timestamps to execute Tempo transactions only within a chosen time window for vesting, expiring offers, and delayed actions.
+---
+
 # Scheduled Transactions
 
 Execute transactions only within a specific time window using `validAfter` and `validBefore` timestamps.

src/pages/guide/use-accounts/webauthn-p256-signatures.mdx

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+---
+title: WebAuthn and P256 Signatures
+description: Learn how Tempo derives EOA addresses from secp256k1, P256, and WebAuthn signatures, including shared address derivation for passkeys.
+---
+
 # WebAuthn & P256 Signatures
 
 Tempo EOA addresses can be derived from multiple signature types. Allowing you to sign transactions with standard Ethereum wallets, hardware security keys, biometric authentication like Face ID and Touch ID, or even using [passkeys](https://passkeys.dev/).

src/pages/protocol/tips/index.mdx

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+---
+title: Tempo Improvement Proposals (TIPs)
+description: Browse Tempo Improvement Proposals, the design documents that define protocol changes, technical specifications, and implementation guidance.
+---
+
 import { TipsList } from '../../../components/TipsList'
 
 # Tempo Improvement Proposals (TIPs)