Feature Request: Granular Email Notification Controls for Job Applications Problem Statement Currently, email notifications for job applications can only be turned on/off globally for ALL employers/users. This creates two problems: When enabled: All users receive every application notification, causing email overload When disabled: No one gets notified, potentially causing missed applications Current State ❌ Global on/off switch only ❌ No targeting of specific recipients ❌ No frequency control options ❌ No job-level customisation User Story As an employer/hiring manager, I want granular control over who receives job application notifications and how frequently, so that relevant team members stay informed without overwhelming everyone with irrelevant emails. Acceptance Criteria Replace Global Controls with Granular Options: Remove current all-or-nothing global setting Add per-job notification recipient selection Add per-user notification preferences Recipient Targeting: Default notifications to job creator only Allow adding specific team members per job Support role-based recipients (e.g., "all hiring managers") Frequency Controls: Individual email per application Daily digest (all applications from past 24 hours) Weekly digest Disable notifications entirely (per user/per job) Migration Strategy: For existing jobs: Default to current behaviour initially, allow opt-in to new controls Provide bulk update tool for existing job postings Business Impact Reduces support complaints about email overload Prevents missed applications from blanket disabling Improves employer satisfaction and platform stickiness