chore(ci): update paths-ignore for main and pull_request triggers in …

[HadwaAbdelhalem]

Description

This PR optimizes the CI-Deploy workflow by adding paths-ignore filters to skip infrastructure provisioning and deployment when changes are limited to documentation and non-functional files to reduce unnecessary pipeline runs.

Benefits
✅ Consistent behavior - Same paths ignored for both PR and merge to main
✅ Reduced CI costs - Skips workflow for documentation-only changes
✅ Logical separation - cicd infrastructure changes won't trigger app deployments
✅ Markdown exclusion - README, CHANGELOG updates won't trigger expensive infrastructure provisioning

What Gets Skipped
The workflow will NOT run if changes are only in:

• docs directory (documentation)
• decision-log directory (ADRs)
• cicd directory (CI/CD infrastructure Terraform)
• Root-level markdown files (README.md, CHANGELOG.md, etc.)
• What Still Triggers

The workflow WILL run for changes in:

• infra - Main application infrastructure
• src - Source code
• workflows - This workflow itself
• azd-hooks - Deployment hooks
• tests - Test files
• Any other files not in the ignore list

Edge Cases Covered
✅ Mixed changes (e.g., code + docs) → Workflow runs
✅ Documentation-only changes → Workflow skips
✅ workflow_dispatch manual triggers → Always runs (not affected by paths-ignore)

Related Issue(s)

Resolves #346
Closes #346

[Copilot]

Pull request overview

This PR optimizes the CI-Deploy workflow by adding paths-ignore filters to skip expensive infrastructure provisioning and deployment runs when changes are limited to documentation and metadata files. The implementation applies consistent filtering rules to both push and pull_request triggers, reducing CI costs while maintaining full coverage for functional code changes.

Key changes:

• Added identical paths-ignore configurations to both push and pull_request triggers, filtering out docs/**, decision-log/**, cicd/**, and root-level *.md files
• Cleaned up trailing whitespace on several lines throughout the workflow file
• Preserved critical trigger paths: workflow runs for changes to infra/, src/, .github/workflows/, azd-hooks/, tests/, and any other non-ignored paths