Bump @linearb/gitstream-core to 2.1.310

[linearbci]

Move the review-only test-file filter from sls-pr-agent into core, so test files are dropped before the AI call.

Jira: LINBEE-29165

• Patterns from sls-pr-agent , anchored so doesn't match
• Reviews only, agentic included; describe still sees tests
• Test-only PRs still reach the agent, so they keep their LGTM / open-findings answer (, manual )
• Deleted files are judged by their original path
• The agent's own filter is removed in a follow-up, after this ships in sls-pipeline

🤖 Generated with Claude Code

✨ PR Description

Purpose: Implement a test file detection system to exclude test code from AI PR reviews in the core rules-parser.

Main changes:

• Defined using comprehensive regex to identify test files across multiple languages
• Added helper to filter test files based on new or original paths
• Updated to exclude test files during AI reviews while bypassing validation for test-only PRs

Generated by LinearB AI and added by gitStream.
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[orca-security-us]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Infrastructure as Code	0   0   0   0	View in Orca
Passed	OSS Licenses	0   0   0   0	View in Orca
Passed	SAST	0   0   0   0	View in Orca
Passed	Secrets	0   0   0   0	View in Orca
Passed	Vulnerabilities	0   0   0   0	View in Orca