feat: [#614] Optimize facades.Orm().Query().Exists(), Order() and Count() methods

[hwbrzzl]

📑 Description

Closes goravel/goravel#614

@coderabbitai summary

✅ Checks

• Added test cases for my code

[Copilot]

PR Overview

This PR optimizes the Query.Exists() method by changing its signature to return a (bool, error) pair rather than taking a pointer argument. Key changes include updating the mocks to align with the new signature, modifying the actual Query.Exists implementation in the database package, and updating tests and contracts to reflect the new behavior.

Reviewed Changes

File	Description
mocks/database/orm/Query.go	Updated mock function for Exists to match the new (bool, error) API.
database/gorm/query.go	Adjusted the Exists implementation to return a bool and error.
tests/query_test.go	Modified tests to work with the revised Exists signature.
contracts/database/orm/orm.go	Updated the interface for Exists to match the new signature.

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

[github-actions]

⚠️ Performance Alert ⚠️

Possible performance regression was detected for benchmark.
Benchmark result of this commit is worse than the previous benchmark result exceeding threshold 1.50.

Benchmark suite	Current: 76e4256	Previous: 84fded1	Ratio
BenchmarkFile_ReadWrite	298600 ns/op 2072 B/op 28 allocs/op	184761 ns/op 2072 B/op 28 allocs/op	1.62
BenchmarkFile_ReadWrite - ns/op	298600 ns/op	184761 ns/op	1.62

This comment was automatically generated by workflow using github-action-benchmark.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.82%. Comparing base (84fded1) to head (d227ee4).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #929   +/-   ##
=======================================
  Coverage   68.82%   68.82%           
=======================================
  Files         154      154           
  Lines       10200    10200           
=======================================
  Hits         7020     7020           
  Misses       2857     2857           
  Partials      323      323           

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[hwbrzzl]

Consistent with Laravel