v1.8.0

Refactor — Post content rendering pipeline extracted to ContentProcessor class (C4, issue #3)

• includes/classes/content/class-content-processor.php (new): post-content render pipeline (recursion guard, memory check, do_blocks dispatch, inline-CSS extraction + footer queue, fallback path) now lives as \BWS\DynamicTags\Content\ContentProcessor. Procedural API in includes/helpers/content-helpers.php preserved as thin wrappers — no caller-visible signature changes.
• New generic entry: bws_render_block_content( $raw, $cache_key, $args ) / ContentProcessor::render(). Recursion stack now keys on a caller-supplied string ('post:'.$post_id for post-content, 'option:'.$key reserved for v1.9.0 src:site wp_options rendering) rather than an integer post ID. Required to support rendering block markup that doesn't live in a wp_posts row.
• $GLOBALS['bws_content_processing_stack'] removed. Stack state is now sole property of ContentProcessor (static array). bws_content_debug_end() reads depth via ContentProcessor::stack_depth().

Added — Content pipeline filters

• bws_content_memory_threshold (float, default 0.80): memory-usage fraction below which the primary render path runs. Filter to 0.0 to force the fallback path; raise toward 1.0 to allow primary rendering closer to OOM. Replaces the previous hardcoded 80% threshold.
• bws_content_max_recursion_depth (int, default 3): maximum content stack depth before further pushes are blocked. Replaces the previous hardcoded depth-3 cap.

Refactor — includes/helpers/content-helpers.php split into single-concern files

• includes/helpers/field-helpers.php (new): post-meta/ACF reads (bws_read_field, bws_read_term_field, bws_meta_handler_read, bws_get_loop_row_context, bws_resolve_acf_object_id, bws_extract_post_id, bws_get_related_posts_data, bws_is_valid_meta_key). Moved verbatim.
• includes/helpers/preview-helpers.php (new): editor preview-label builders (bws_build_preview_label, bws_build_try_preview_label, bws_try_preview_template_label, bws_try_preview_field_part, bws_try_preview_source_part, bws_try_preview_datetime_part, bws_wrap_preview_label_with_link). Moved verbatim.
• includes/helpers/link-helpers.php (new): linkTo / linkKey resolution + <a> wrapping (bws_resolve_link_url, bws_wrap_with_link, bws_get_link_options, bws_map_gb_link_option). Moved verbatim.
• includes/helpers/registration-helpers.php (new): GB-registration / wire-format helpers (bws_strip_default_select_values). Moved verbatim from content-helpers.php.
• includes/helpers/content-helpers.php slimmed to ContentProcessor wrappers + bws_sanitize_rich_content + relationship-field-options + bws_is_query_loop_setup_phase + bws_safe_content_output.

Docs

• docs/post-content-processing-reference.md: rewritten primary/fallback pipeline + recursion sections to reflect ContentProcessor. New filters documented; public API table now distinguishes class-level methods from procedural wrappers and notes bws_render_block_content as the generic entry. Cache key contract documented ('post:'.$id, 'option:'.$key, collisions defeat the guard).
• docs/plugin-integration.md: helper section split into Field / Preview / Link / Content / Registration subsections matching the new file layout. Added Filters table.