Add repository filtering docs for organization-level rules

[vim-zz]

✨ PR Description

Purpose: This PR enhances organization-level rule control in gitStream by introducing repository-specific inclusion and exclusion capabilities.

Main changes:

• Adds a section on controlling organization-level rules per repository using triggers
• Introduces repository inclusion and exclusion functionality using triggers.include.repository and triggers.exclude.repository
• Demonstrates how to create repository-type specific rules for different repository categories

Generated by LinearB AI and added by gitStream.
_{AI-generated content may contain inaccuracies. Please verify before using. We’d love your feedback! 🚀}

[orca-security-us]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Infrastructure as Code	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

[gitstream-cm]

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[gitstream-cm]

A screenshot of the relevant part of docs after the changes is a life saver 🛟

[gitstream-cm]

A screenshot of the relevant part of docs after the changes is a life saver 🛟