Bump @linearb/gitstream-core to 2.1.293

[linearbci]

LINBEE-26978 Phase 2 (decode side). Pairs with the gitstream-sls-pipeline stack (#2987 → #2990 → #2991 → #2992).

https://linearb.atlassian.net/browse/LINBEE-26978

• When is a reference envelope (), fetch the stashed blob from the resolver payload endpoint () and inflate via .
• Inert for plain/gzip payloads — GitHub, GitLab, and existing Bitbucket flows unaffected.

Deploy order (decode-first): this must ship to the rules-engine image before the pipeline flag is flipped on, so the engine can decode a reference before any trigger emits one. Safe to merge first (backward-compatible).

✨ PR Description

Purpose: Enable fetching and decompressing oversized Bitbucket webhook payloads stored server-side to support larger client_payload references.

Main changes:

• Added parsePayloadReference utility to detect and extract fetch coordinates from stashed payload references
• Implemented loadReferencedPayload function that fetches remote payloads before processing with axios and Bearer token authentication
• Integrated payload loading into runCI initialization pipeline with base64/gzip decompression support

CHANGELOG

✨ New Features

• Support for handling oversized webhook payloads stored server-side instead of inline

🔧 Improvements

• Optimized payload handling to automatically fetch and decompress large payloads transparently during CI runs

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   2   0   0	View in Orca

☢️ The following Vulnerabilities (CVEs) have been detected

	PACKAGE	FILE	CVE ID	INSTALLED VERSION	FIXED VERSION
	js-yaml	./package-lock.json	CVE-2026-59869	4.2.0	3.15.0, 4.3.0	View in code
	shell-quote	./package-lock.json	CVE-2026-13311	1.8.4	1.9.0	View in code