feat: support for custom token exchange

[ramya18101]

🔧 Changes

Add token exchange support in the Auth0 Deploy CLI
Add support of new field token_exchange in clients
Document the new resource with YAML and directory examples and seed sample configs in examples/.

Examples

YAML format

tokenExchangeProfiles:
  - name: "Custom Authentication Profile"
    type: "custom_authentication"
    subject_token_type: "urn:ietf:params:oauth:token-type:custom"
    action: "custom-token-exchange-action"

JSON format

{
  "name": "Custom Authentication Profile",
  "type": "custom_authentication",
  "subject_token_type": "urn:ietf:params:oauth:token-type:custom",
  "action": "custom-token-exchange-action"
}

📚 References

Get token exchange profiles
Create a token exchange profile
Get a token exchange profile
Delete a token exchange profile
Update an existing token exchange profile

🔬 Testing

• Unit tests Added

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 86.29032% with 17 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (beta@0460934). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/tools/auth0/handlers/tokenExchangeProfiles.ts	82.02%	6 Missing and 10 partials ⚠️
...ontext/directory/handlers/tokenExchangeProfiles.ts	95.45%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             beta    #1232   +/-   ##
=======================================
  Coverage        ?   80.60%           
=======================================
  Files           ?      140           
  Lines           ?     5500           
  Branches        ?     1116           
=======================================
  Hits            ?     4433           
  Misses          ?      616           
  Partials        ?      451           

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[kushalshit27]

@claude

[kushalshit27]

Changes look fine to me.
Please review Claude's comments and provide a reply.

Please fix E2E tests.