SFM-Flow

### [Added]

* Advanced Item Filter cards can now match items by Mod ID (matching all items belonging to a specific mod) or by Item Tag (such as `#minecraft:planks`).

* Scrollable tag selector within the filter card settings panel to choose matching tags dynamically.

* Cycling item preview animations on cards configured for tags, cycling once per second through all items associated with the selected tag.

* Visual "MID" text overlay on filter card slots when they are configured to match by Mod ID.

* Custom tooltip lines on filter cards to describe whether they are matching by a specific item, mod namespace, or tag.

* Introduced a slot configuration developer API (`ISlotConfigurable`) that allows third-party add-on creators to reuse the compact block slot selector menu on their own custom nodes.

* Added a dynamic error-handling API (`INodeClientProperties#getErrorTooltip`) that enables custom flowchart blocks to display custom validation errors and warning card tooltips in the interface.

### [Changed]

* Aligned quantity configuration fields to the right of the item slot in the variable card overlay, making room for color and tag controls.

* Refactored network code into a separate processing module to clean up the mod's initial boot sequence.

* Re-organized how client-side settings, screens, and keybinds register themselves during game startup.

* Refactored slot selector menus to support configurations on any compatible custom inventory node rather than restricting them exclusively to the default item input and output blocks.

* Moved visual node error message logic out of main system rendering loops and into modular client registries.

### [Fixed]

* Isolated client-only code paths to prevent crash loop errors when hosting or running dedicated multiplayer servers.