Ad Platform Budget Management & Monitoring Expansion

New Features

• Adds campaign budget management for Google Ads, LinkedIn, Meta, Microsoft Ads, and Reddit Ads.
• Extends account monitoring to X (Twitter) and Microsoft Ads, giving operators visibility across every connected platform.
• Completes Google Ads campaign creation for Search and Demand Gen, adding flight window support for event campaigns.
• Adds audience scoping for explorer, attach-existing, and suppression modes, preventing campaigns from targeting an event's own registrants.
• Enables X (Twitter) campaigns to author a promoted tweet when no existing tweet is provided.
• Connection tests now verify live platform connectivity before confirming a connection is ready to dispatch.
• Tracks campaign versions per slot, so operators can create a second campaign on any platform a brief uses.

Bug Fixes

• Corrects LinkedIn and Meta account-monitor reads to the project's connected account.
• Corrects Reddit account-monitor query scope and reporting window.
• Fixes last-sent tracking to rank by date and eliminate false precedent.
• Resolves security vulnerabilities in telemetry and transport dependencies.