fix(config): Update config constants

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[Copilot]

Pull request overview

This PR reorganizes configuration constants in the codebase for better clarity and maintainability. The constants are now grouped by their logical purpose with descriptive comments, and several constants have been renamed to be more consistent and less redundant.

Changes:

• Reorganized constants into logical groups (Application metadata, Logging defaults, Concurrency settings, etc.)
• Renamed DefaultLogLevel and DefaultLogFormat to LogLevel and LogFormat
• Renamed DefaultProfile to Default for consistency with existing naming
• Increased MaxWorkers from 3 to 5
• Updated all references throughout the codebase to use the new constant names

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
internal/config/constants.go	Reorganized and renamed configuration constants with improved grouping and documentation
internal/config/config.go	Updated references to renamed logging and profile constants
internal/config/config_test.go	Updated test assertions to use renamed logging constants
internal/app/runner/workerpool_test.go	Updated hardcoded worker count values to reference config.MaxWorkers constant
internal/app/cli/commands.go	Updated default profile reference to use renamed constant
internal/app/cli/commands_test.go	Updated test cases to use renamed profile constant
internal/app/cli/cli_test.go	Updated test cases and mock expectations to use renamed constant
cmd/main_test.go	Updated test cases to use renamed profile constant

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.46%. Comparing base (7947e7c) to head (864073c).

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #48   +/-   ##
=======================================
  Coverage   87.46%   87.46%           
=======================================
  Files          34       34           
  Lines        2584     2584           
=======================================
  Hits         2260     2260           
  Misses        285      285           
  Partials       39       39           

Files with missing lines	Coverage Δ
internal/app/cli/commands.go	100.00% <100.00%> (ø)
internal/config/config.go	86.76% <100.00%> (ø)

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