Implement user avatar upload

[shamoo53]

Title: Implement User Avatar Upload Feature

Description:
This PR introduces support for user profile avatar uploads, enabling users to upload and manage their profile images within the platform.

Overview of Changes:

• Added endpoint for uploading user avatar images
• Implemented file validation to ensure only supported image types (e.g., JPEG, PNG) are accepted
• Enforced file size limits to prevent oversized uploads
• Integrated image resizing/optimization to standardize avatar dimensions and improve performance
• Stored processed images and returned accessible avatar URLs
• Updated user model to include avatar URL field

Acceptance Criteria Covered:

• ✔️ Users can upload profile images
• ✔️ File type validation (only valid image formats allowed)
• ✔️ File size validation enforced
• ✔️ Uploaded images are resized/optimized
• ✔️ Avatar URL is generated and stored

Technical Notes:

• Image processing handled via [insert library, e.g., Sharp / Cloudinary / Multer]
• Storage configured using [local storage / S3 / cloud provider]
• Error handling added for invalid uploads and processing failures

Testing:

• Verified successful upload and retrieval of avatar images
• Tested validation for unsupported file types and oversized files
• Confirmed image resizing works as expected
• Ensured avatar URL is correctly persisted and returned in user profile

Impact:
This feature improves user personalization and enhances overall user experience while maintaining performance and storage efficiency.

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Closes #307

Here’s a clean PR description for that issue:

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Title: Implement User Soft Delete Functionality (#309)

Description:
This PR introduces soft delete functionality for users, allowing accounts to be marked as deleted without permanently removing them from the database. This ensures data integrity, auditability, and potential recovery if needed.

Overview of Changes:

• Added deletedAt timestamp field to the user model
• Implemented soft delete logic to set deletedAt instead of permanently deleting records
• Updated queries to exclude soft-deleted users by default
• Restricted delete action to admin-only access
• Added safeguards to prevent interaction with soft-deleted accounts

Acceptance Criteria Covered:

• ✔️ Users are soft deleted via deletedAt timestamp
• ✔️ Soft-deleted users are excluded from standard queries
• ✔️ Only admins can perform delete գործող actions

Technical Notes:

• Soft delete handled at the service/repository layer
• Query filters updated globally (or via middleware/scopes) to exclude deletedAt != null
• Optional support for future restore functionality

Testing:

• Verified that deleting a user sets the deletedAt field correctly
• Confirmed soft-deleted users do not appear in standard fetch queries
• Tested admin-only restriction on delete endpoint
• Ensured system behavior remains stable when interacting with soft-deleted records

Impact:
Improves data safety and compliance by avoiding permanent data loss, while maintaining clean application behavior through query filtering.
Closes #309

Here’s a clean, production-ready PR description:

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Title: Implement “Remember Me” Persistent Sessions (#300)

Description:
This PR adds “Remember Me” functionality to authentication, enabling users to maintain persistent sessions across visits when the option is selected. It introduces extended session duration, secure cookie handling, and clear separation between standard and persistent sessions.

Overview of Changes:

• Added support for “Remember Me” flag during login
• Implemented persistent sessions with 30-day expiry
• Configured secure, HTTP-only cookies for session storage
• Distinguished persistent sessions from regular sessions (short-lived)
• Stored user preference to enable/disable “Remember Me”
• Updated authentication flow to respect session type

Acceptance Criteria Covered:

• ✔️ Persistent sessions with 30-day expiration
• ✔️ Secure cookie configuration (HTTP-only, Secure, SameSite)
• ✔️ Clear distinction between regular and “Remember Me” sessions
• ✔️ User preference stored and respected

Technical Notes:

• Session duration dynamically set based on “Remember Me” selection
• Cookies configured with enhanced security best practices
• Backend logic updated to handle session validation and expiry accordingly
• Compatible with existing authentication middleware

Testing:

• Verified persistent login across browser restarts when “Remember Me” is enabled
• Confirmed session expires correctly after 30 days
• Tested regular sessions expire as expected when “Remember Me” is not selected
• Validated cookie security flags and storage behavior
• Ensured logout invalidates both session types correctly

Impact:
Improves user experience by reducing repeated logins while maintaining strong security controls and session management discipline.
Closes #300

Here’s a solid, production-ready PR description:

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Title: Implement Device Fingerprinting & Recognition (#302)

Description:
This PR introduces device fingerprinting to enhance account security by identifying and tracking user devices. It enables detection of new or unrecognized devices and supports alerting mechanisms for suspicious login activity.

Overview of Changes:

• Implemented device fingerprint generation during authentication
• Captured and stored device metadata (e.g., browser, OS, IP, user agent)
• Added logic to compare incoming fingerprints against known devices
• Flagged and recorded new/unrecognized devices
• Integrated alert mechanism for logins from unknown devices
• Linked devices to user accounts for tracking and auditing

Acceptance Criteria Covered:

• ✔️ Device fingerprint is generated on login
• ✔️ Device information is stored and associated with user
• ✔️ System detects new/unrecognized devices
• ✔️ Alerts triggered for unknown device access

Technical Notes:

• Fingerprint generated using a combination of request headers and device attributes
• Stored in a dedicated UserDevice (or similar) table/collection
• Matching logic includes tolerance for minor changes (e.g., IP shifts)
• Alerting can be extended to email/SMS/notification services
• Designed to work alongside existing authentication/session logic

Testing:

• Verified fingerprint generation and storage on login
• Confirmed known devices are recognized correctly
• Tested detection of new devices across different browsers/devices
• Validated alert trigger on unrecognized device login
• Ensured no disruption to normal authentication flow

Impact:
Strengthens account security by providing visibility into device usage and enabling early detection of suspicious access patterns.
Closes #302

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