feat/add filter v2 support

[abhisek]

• feat: Add support for filter v2
• Add filter v2 support
• Add test for filter v2 evaluator
• fix: CEL v2 query engine

[codecov]

Codecov Report

❌ Patch coverage is 21.25000% with 441 lines in your changes missing coverage. Please review.
✅ Project coverage is 8.38%. Comparing base (651b09b) to head (80c6eaf).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/analyzer/cel_filter_suite_v2.go	0.00%	121 Missing ⚠️
pkg/analyzer/cel_filter_v2.go	0.00%	112 Missing ⚠️
pkg/analyzer/filterv2/eval.go	55.18%	82 Missing and 13 partials ⚠️
scan.go	0.00%	50 Missing ⚠️
query.go	0.00%	44 Missing ⚠️
pkg/analyzer/filterv2/result.go	18.18%	9 Missing ⚠️
pkg/analyzer/cel_filter_suite.go	0.00%	6 Missing ⚠️
pkg/analyzer/filterv2/program.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##            main    #560      +/-   ##
========================================
+ Coverage   8.23%   8.38%   +0.14%     
========================================
  Files        284     290       +6     
  Lines      47501   48103     +602     
========================================
+ Hits        3914    4033     +119     
- Misses     43314   43784     +470     
- Partials     273     286      +13     

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[Copilot]

Pull Request Overview

This PR adds support for filter v2 capabilities by introducing new policy-based filtering with Insights v2 data model while maintaining backward compatibility with existing filters.

• Adds new --filter-v2, --filter-v2-suite, --policy, and --policy-suite command-line flags
• Implements policy evaluation system using CEL expressions with Insights v2 data model
• Creates new analyzer components for v2 filtering with comprehensive test coverage

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
scan.go	Adds new CLI flags for filter v2 and policy options with validation
query.go	Adds corresponding query command flags and renames variables for consistency
pkg/analyzer/filterv2/result.go	Defines filter evaluation result structure
pkg/analyzer/filterv2/program.go	Implements filter program wrapper for CEL evaluation
pkg/analyzer/filterv2/eval_test.go	Provides test coverage for the filter evaluator
pkg/analyzer/filterv2/eval.go	Core CEL evaluator implementation with policy input processing
pkg/analyzer/cel_filter_v2.go	Single filter v2 analyzer implementation
pkg/analyzer/cel_filter_suite_v2.go	Filter suite v2 analyzer implementation
pkg/analyzer/cel_filter_suite.go	Minor formatting improvements to existing filter suite

[Copilot]

The error message should be grammatically correct: "max filter limit has been reached" instead of "max filter limit has reached".

Suggested change

	var errMaxFilter = errors.New("max filter limit has reached")
	var errMaxFilter = errors.New("max filter limit has been reached")

[Copilot]

[nitpick] Use !iter.HasNext().Value() instead of == false for better readability and Go idioms.

Suggested change

	if iter.HasNext().Value() == false {
	if !iter.HasNext().Value() {

[Copilot]

This TODO comment indicates a known inefficiency with JSON serialization round-trip. Consider creating a GitHub issue to track this technical debt or implement the direct Protobuf configuration.

Suggested change

	// Protobuf messages are now passed directly to CEL; JSON round-trip removed.