Add comprehensive documentation to workflow automation scripts

[MayurVirkar]

Summary

This PR adds comprehensive documentation headers to all bash and PowerShell scripts in the scripts/ folder to
improve contributor onboarding and project maintainability.

What was changed

Added detailed documentation headers to 12 scripts total:

Bash Scripts (scripts/bash/):

• check-task-prerequisites.sh - Validates prerequisites before implementation tasks
• common.sh - Shared utility functions and path resolution logic
• create-new-feature.sh - Initializes new features with branch and directory structure
• get-feature-paths.sh - Displays current feature file and directory paths
• setup-plan.sh - Creates implementation plan from template
• update-agent-context.sh - Updates AI agent context files with project information

PowerShell Scripts (scripts/powershell/):

• check-task-prerequisites.ps1 - PowerShell equivalent of bash prerequisites checker
• common.ps1 - PowerShell shared functions library
• create-new-feature.ps1 - PowerShell feature initialization script
• get-feature-paths.ps1 - PowerShell path display utility
• setup-plan.ps1 - PowerShell plan setup script
• update-agent-context.ps1 - PowerShell agent context updater

Documentation includes

Each script now contains:

• Comprehensive description of purpose and functionality
• Usage instructions with syntax and examples
• Parameter/option documentation with detailed explanations
• Prerequisites for running the script
• Exit codes and error handling information
• Workflow integration context within Spec-Driven Development
• Related scripts references for better navigation
• Cross-platform notes (for PowerShell scripts)

Why this helps contributors

1. Faster onboarding - New contributors can understand script purposes immediately
2. Better debugging - Clear parameter documentation and error codes
3. Workflow understanding - Each script's role in the SDD process is explained
4. Platform flexibility - PowerShell scripts document cross-platform considerations
5. Reduced maintenance burden - Self-documenting code reduces support questions

Testing

• All scripts retain their original functionality
• Documentation follows consistent formatting standards
• Cross-references between related scripts are accurate
• Examples provided are realistic and helpful

Breaking changes

None - this is purely additive documentation with no functional changes.

Why This Contribution Matters

1. Improved Developer Experience: Contributors can now quickly understand what each script does without reading
   through the implementation
2. Better Maintainability: Future updates to scripts will be easier with clear documentation of current
   functionality
3. Onboarding Acceleration: New team members can get up to speed faster with comprehensive usage examples
4. Workflow Clarity: The documentation clearly explains how each script fits into the Spec-Driven Development
   process
5. Cross-Platform Support: PowerShell documentation specifically addresses Windows/Linux/macOS considerations

Files Modified

• scripts/bash/check-task-prerequisites.sh
• scripts/bash/common.sh
• scripts/bash/create-new-feature.sh
• scripts/bash/get-feature-paths.sh
• scripts/bash/setup-plan.sh
• scripts/bash/update-agent-context.sh
• scripts/powershell/check-task-prerequisites.ps1
• scripts/powershell/common.ps1
• scripts/powershell/create-new-feature.ps1
• scripts/powershell/get-feature-paths.ps1
• scripts/powershell/setup-plan.ps1
• scripts/powershell/update-agent-context.ps1

The documentation follows a consistent format across all scripts and provides both technical details and practical
examples to help contributors understand and effectively use the Spec-Driven Development workflow automation
tools.

[Copilot]

Pull Request Overview

This PR adds comprehensive documentation headers to all bash and PowerShell workflow automation scripts to improve contributor onboarding and project maintainability. The documentation provides detailed descriptions, usage instructions, parameter explanations, prerequisites, exit codes, and workflow integration context.

• Adds standardized documentation headers to 12 scripts across bash and PowerShell directories
• Includes comprehensive usage examples, parameter documentation, and workflow integration details
• Maintains consistent formatting and cross-references between related scripts

Reviewed Changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
scripts/bash/check-task-prerequisites.sh	Adds documentation for prerequisite validation script
scripts/bash/common.sh	Documents shared utility functions and path resolution logic
scripts/bash/create-new-feature.sh	Documents feature initialization with branch and directory setup
scripts/bash/get-feature-paths.sh	Documents utility for displaying feature file paths
scripts/bash/setup-plan.sh	Documents implementation plan creation script
scripts/bash/update-agent-context.sh	Documents AI agent context file updater
scripts/powershell/check-task-prerequisites.ps1	PowerShell equivalent documentation for prerequisite checking
scripts/powershell/common.ps1	PowerShell shared functions library documentation
scripts/powershell/create-new-feature.ps1	PowerShell feature creation script documentation
scripts/powershell/get-feature-paths.ps1	PowerShell path display utility documentation
scripts/powershell/setup-plan.ps1	PowerShell plan setup script documentation
scripts/powershell/update-agent-context.ps1	PowerShell agent context updater documentation

Comments suppressed due to low confidence (4)

scripts/bash/create-new-feature.sh:1

• [nitpick] This comment line appears to be a leftover migration note that should be removed since it doesn't add value to the documentation.

#!/usr/bin/env bash

scripts/bash/common.sh:1

• [nitpick] This comment line appears to be a leftover migration note that should be removed since it doesn't add value to the documentation.

#!/usr/bin/env bash

scripts/powershell/create-new-feature.ps1:1

• [nitpick] This comment line appears to be a leftover migration note that should be removed since it doesn't add value to the documentation.

#!/usr/bin/env pwsh

scripts/powershell/common.ps1:1

• [nitpick] This comment line appears to be a leftover migration note that should be removed since it doesn't add value to the documentation.

#!/usr/bin/env pwsh

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[localden]

Thank you for the contribution! At this time, I opt to avoid including this directly in the scripts.