Add more golangci linters

[nopcoder]

Update golangci configuration to enable additional linters for improved code quality:

Added Linters:

• errname: Checks that error names follow Go conventions
• perfsprint: Checks for performance issues in Printf calls
• testifylint: Linting for testify assertions
• revive: Configurable linting with rules for:
  • increment-decrement: Enforces use of ++ and -- instead of += 1 and -= 1
  • indent-error-flow: Enforces proper indentation by removing unnecessary else blocks after return statements
  • use-any: Enforces use of any instead of interface{}
  • use-errors-new: Enforces use of errors.New() instead of fmt.Errorf() for static errors
  • use-waitgroup-go: Enforces proper WaitGroup usage

Configuration Changes:

• Removed gofmt.simplify setting (now handled by formatters section)

Code Fixes:

• Fixed 12 revive linting issues across the codebase:
  • 6 increment-decrement issues: Replaced += 1 with ++
  • 6 indent-error-flow issues: Removed unnecessary else blocks for cleaner code flow