docs: clarify Privy authorization key management

[colfax23]

What changed?

• Documentation
• Bug fix
• New Action
• New Action Provider
• Other

Why was this change implemented?

Privy does not support API management of authorization keys yet, just through the dashboard.

Network support

• All EVM
• Base
• Base Sepolia
• Other

Wallet support

• CDP Wallet
• EVM Wallet
• Other

Checklist

• Changelog updated
• Commits are signed. See instructions
• Doc strings
• Readme updates
• Rebased against master
• Relevant exports added

How has it been tested?

• Agent tested
• Unit tests

Notes to reviewers

[cb-heimdall]

✅ Heimdall Review Status

Requirement	Status	More Info
Reviews	✅ 1/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1