Scope global WordPress hooks to Feedzy-imported posts only

[ineagu]

Problem

Feedzy hooks into several global WordPress filters (post_thumbnail_html, has_post_thumbnail, wp_get_attachment_image_src, admin_footer, wp_targeted_link_rel) without scoping them to Feedzy post types. This causes interference with other plugins — e.g., Slider Hero's images get hijacked when wp_get_attachment_image_src fires on posts with $attachment_id === 0, and modals/JS intended for Feedzy admin pages load on every admin screen.

Root Cause

Functions in feedzy-rss-feeds-feed-tweaks.php and feedzy-rss-feeds-admin.php fire on ALL posts/pages, not just Feedzy-imported ones. The wp_targeted_link_rel filter in feedzy-rss-feeds-actions.php uses an anonymous closure that leaks after import jobs complete.

Solution

feed-tweaks.php — Add get_post_meta($post_id, 'feedzy', true) guard to:

• feedzy_display_external_post_image() — early return if not Feedzy post
• feedzy_enable_external_url_support() — early return if not Feedzy post
• feedzy_get_attachment_image_src() — nest external URL logic inside Feedzy meta check

admin.php — Add get_current_screen() check to add_modals(), only fire on feedzy_categories and feedzy_imports post types.

actions.php — Capture wp_targeted_link_rel callback reference, apply filter, save HTML result, remove_filter() immediately after, then return.

Files Affected

• includes/feedzy-rss-feeds-feed-tweaks.php
• includes/admin/feedzy-rss-feeds-admin.php
• includes/admin/feedzy-rss-feeds-actions.php

Acceptance Criteria

• Non-Feedzy posts with $attachment_id === 0 are not affected by feedzy_get_attachment_image_src
• has_post_thumbnail returns unchanged value for non-Feedzy posts
• Feedzy modals/JS do not load on non-Feedzy admin screens
• wp_targeted_link_rel filter is removed after each import job HTML save
• Feedzy-imported posts continue to display external thumbnails correctly

Priority: High — compatibility fix, prevents cross-plugin interference
Regression risk: Isolated (guards are early-return only)