Implement Phone Number Tracking Feature

[muneneinnocent03-web]

Overview

Introduce a phone number tracking feature to enhance the app's capabilities in contact management, analytics, or related use-cases. This feature could include options for collecting, logging, and analyzing phone number-based events, always respecting privacy requirements.

Goals

• Identify all places where the app collects, logs, or uses phone numbers.
• Add functionality to track phone-number-related events: e.g., calls made, numbers copied, numbers shared.
• Normalize and validate phone numbers (e.g., in E.164 format).
• Ensure all phone number data handling complies with privacy and security best practices.
• Provide option to opt-in and document user consent (if applicable).
• Add unit tests for all new tracking functions.

Acceptance Criteria

• All current collection & logging points for phone numbers are documented.
• Phone numbers are consistently stored and processed in a normalized format.
• Tracking data is accessible for analytics (e.g., event logging, call frequency).
• No plaintext phone numbers appear in logs (unless allowed by privacy policy).
• Code is covered by tests and reviewed for privacy/security compliance.

Labels

• enhancement
• privacy
• security (if available)

Security & Privacy Notes

• Mark for review before merge, as the feature handles personally identifiable information (PII).