feat: add embedded examples for configuration files

[creativeprojects]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.97%. Comparing base (708ed65) to head (d4f0733).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #626   +/-   ##
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  Coverage   80.97%   80.97%           
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  Files         162      162           
  Lines       12084    12084           
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  Hits         9785     9785           
  Misses       1804     1804           
  Partials      495      495           

Flag	Coverage Δ
unittests	79.25% <ø> (ø)

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[Copilot]

Pull request overview

This PR makes the repository’s configuration examples available via embed.FS and updates JSON schema validation tests to consume those embedded examples (rather than relying on walking the repo’s filesystem).

Changes:

• Added examples package exposing an embedded filesystem containing example configuration files.
• Updated JSON schema validation tests to walk/read example configs from examples.Files via io/fs.
• Refactored JSON rewrite helper to convert configs to JSON from in-memory content (viper.ReadConfig) instead of reading from disk.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
examples/examples.go	Introduces an embedded FS (Files) containing example config files (*.conf/*.toml/*.yaml/*.json/*.hcl).
config/jsonschema/schema_test.go	Switches schema validation tests to use embedded example configs and embeds local invalid configs for the “invalid” subtests.

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