docs: update Restish v2 references

[danielgtaylor]

Summary

• update Restish install instructions for v2, including Homebrew core and the v2 Go module path
• switch CLI setup docs and terminal recording from api configure to api connect
• refresh Restish docs links and fix the CLI auto-config extension key to x-cli-config

Testing

• rg sweep for stale Restish v1 strings
• parsed docs/docs/terminal/restish-config.cast as JSON-lines
• mkdocs build --strict (fails locally: missing Cairo library required by cairosvg)

[Copilot]

Pull request overview

This PR refreshes the documentation and inline references for the Restish CLI after its v2 updates, aligning install instructions, CLI commands, OpenAPI extension naming, and external documentation links.

Changes:

• Updated Restish installation instructions (new GitHub org/release link and v2 Go module path; removed Homebrew tap step).
• Switched tutorial guidance and terminal recording from restish api configure to restish api connect.
• Standardized the CLI auto-config OpenAPI extension key to x-cli-config and updated Restish documentation links.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
docs/docs/tutorial/cli-client.md	Updates Restish install steps, links, and tutorial flow to use api connect.
docs/docs/terminal/restish-config.cast	Re-records terminal session to reflect restish api connect behavior/output.
docs/docs/how-to/oauth2-jwt.md	Updates Restish auto-configuration link for the x-cli-config extension mention.
docs/docs/features/json-schema-registry.md	Updates Restish “edit” command documentation link.
docs/docs/features/cli-auto-config.md	Fixes extension key to x-cli-config and updates Restish documentation link.
docs/docs/features/auto-patch.md	Updates Restish shorthand merge patch documentation links.
autoconfig.go	Updates the comment link pointing readers to Restish OpenAPI reference docs.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.14%. Comparing base (8258b45) to head (3c49bf5).
⚠️ Report is 32 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #1041    +/-   ##
========================================
  Coverage   93.14%   93.14%            
========================================
  Files          23       23            
  Lines        4667     4901   +234     
========================================
+ Hits         4347     4565   +218     
- Misses        264      272     +8     
- Partials       56       64     +8     

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