Bump @linearb/gitstream-core to 2.1.254

[linearbci]

✨ PR Description

Purpose: Add pullRequestNumber and repo_path fields to LinearbAIContext and LinearbAIRequestData to enhance AI processing context with PR metadata and repository path information.

Main changes:

• Added pullRequestNumber field to LinearbAIContext interface and populated it from payload in getLinearbAIContext function
• Renamed clonedRepoPath to repo_path in LinearbAIRequestData and integrated getOverrideCloneRepoPath() for dynamic path resolution
• Refactored getLinearbAIContext to explicitly type and return LinearbAIRequestData object with all required fields

CHANGELOG

✨ New Features

• PR context now includes pull request number for better AI analysis accuracy

🔧 Improvements

• Enhanced repository path resolution with override capability for AI processing

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