refactor: centralize panic logging into a new function and remove duplicated logic across components.

[CodeMaverick-143]

Fix undefined panicLog error in handler

Description:

• Fixed a compilation error in pkg/gofr/handler.go caused by the usage of an undefined/unexported struct panicLog.
• Replaced the manual panic logging implementation with the exported helper function logging.LogPanic.
• Removed the unused runtime/debug import to keep imports clean.
• This change ensures that panic recovery correctly logs stack traces using the centralized logging logic.

Breaking Changes (if applicable):

• None. This is a fix for a build error and implementation detail.

Additional Information:

• The error occurred because panicLog is defined in the logging package but is not exported, so it could not be initialized directly from gofr. Using logging.LogPanic resolves this access issue.

Checklist:

• I have formatted my code using goimport and golangci-lint.
• All new code is covered by unit tests.
• This PR does not decrease the overall code coverage.
• I have reviewed the code comments and documentation for clarity.