Add PaySafe integration documentation

[corbinallison]

Added documentation for PaySafe: a payment security firewall for x402. Screens payments for PII/secret leaks, nonce replay, overpayment & prompt-injection-triggered payments. Non-custodial.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: c861001b-3c6a-49e4-98d3-8f9194fee85c

📥 Commits

Reviewing files that changed from the base of the PR and between da9902d and 735a330.

📒 Files selected for processing (2)

• docs/docs.json
• docs/edge/en/tools/integration/crewai-paysafe.mdx

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📝 Walkthrough

Walkthrough

Adds a new PaySafe integration guide covering installation, provenance registration, available tools, and guarded payment enforcement, and registers the page in the documentation index.

Changes

PaySafe documentation

Layer / File(s)	Summary
Add and publish PaySafe integration guide docs/edge/en/tools/integration/crewai-paysafe.mdx, docs/docs.json	The new guide documents PaySafe setup, the required after-tool-call provenance hook, available payment security tools, guarded_payment block enforcement, references, and the non-custodial disclaimer; the documentation index includes the new page.

Suggested reviewers: lucasgomide, lorenzejay

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the main change: adding PaySafe integration documentation.
Description check	✅ Passed	The description is directly related to the new PaySafe documentation and its security-firewall focus.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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