feat(moonraker): Bridge-Filament-Hint (tray_info_idx + vendor) respektieren

KX-Bridge sendet bereits konkrete Filament-IDs und Vendor-Hints im
AMS-JSON, aber MoonrakerPrinterAgent überschreibt sie unbedingt mit
filament_id_by_type() → erstes sichtbares Preset alphabetisch gewinnt.

Patch:
- AmsTrayData um filament_vendor erweitert
- Liest tray_info_idx + filament_vendor aus Bridge-JSON
- Wenn tray_info_idx leer + vendor vorhanden: Vendor+Type+Color-Match
  (gleiche Logik wie SnapmakerPrinterAgent)
- Sonst: alter filament_id_by_type-Fallback (unverändertes Verhalten)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/slic3r/Utils/MoonrakerPrinterAgent.cpp

@@ -37,6 +37,48 @@ struct WsEndpoint
     bool        secure = false;
 };
 
+// Find best-matching visible filament preset by vendor + type + color.
+// Same algorithm as SnapmakerPrinterAgent's helper. Allows the KX-Bridge
+// (which knows the user's slot brand selection) to direct OrcaSlicer to a
+// specific preset instead of falling back to "first sichtbares PETG" lookup.
+std::string find_closest_color_preset_by_vendor_and_type(const Slic3r::PresetCollection& filaments,
+                                                         const std::string&              vendor_name,
+                                                         const std::string&              filament_type,
+                                                         const std::string&              color_rgba)
+{
+    std::string best_match_id       = "";
+    int         best_color_distance = 0xffffffff;
+    if (vendor_name.empty() || filament_type.empty()) return best_match_id;
+
+    auto parse_color = [](const std::string& s) -> unsigned int {
+        if (s.empty()) return 0;
+        std::string h = s;
+        if (!h.empty() && h.front() == '#') h.erase(0, 1);
+        if (h.size() >= 8) h = h.substr(0, 6);            // strip alpha
+        try { return std::stoul(h, nullptr, 16); } catch (...) { return 0; }
+    };
+
+    unsigned int target = parse_color(color_rgba);
+
+    for (const auto& p : filaments.get_presets()) {
+        if (!(p.is_visible && p.is_compatible)) continue;
+        if (filaments.get_preset_base(p) != &p) continue;
+        if (p.config.opt_string("filament_vendor", 0u) != vendor_name) continue;
+        if (p.config.opt_string("filament_type", 0u)   != filament_type) continue;
+
+        unsigned int pc = parse_color(p.config.opt_string("default_filament_colour", 0u));
+        int dr = ((target      ) & 0xff) - ((pc      ) & 0xff);
+        int dg = ((target >>  8) & 0xff) - ((pc >>  8) & 0xff);
+        int db = ((target >> 16) & 0xff) - ((pc >> 16) & 0xff);
+        unsigned int distance = dr * dr + dg * dg + db * db;
+        if (distance < (unsigned int)best_color_distance) {
+            best_color_distance = (int)distance;
+            best_match_id       = p.filament_id;
+        }
+    }
+    return best_match_id;
+}
+
 bool parse_ws_endpoint(const std::string& base_url, WsEndpoint& endpoint)
 {
     if (base_url.empty()) {
@@ -806,10 +848,22 @@ bool MoonrakerPrinterAgent::fetch_moonraker_filament_data(std::vector<AmsTrayDat
         tray.nozzle_temp = safe_json_int(lane_obj, "nozzle_temp");
         tray.has_filament = !tray.tray_type.empty();
         has_populated_lane = has_populated_lane || tray.has_filament;
+        // Bridge-Hints: tray_info_idx (konkrete Filament-ID) + filament_vendor.
+        // KX-Bridge sendet beide, wenn der User in der Bridge-UI ein konkretes
+        // Slot-Profil gewählt hat (Polymaker/eSUN/…).
+        tray.tray_info_idx   = safe_json_string(lane_obj, "tray_info_idx");
+        tray.filament_vendor = safe_json_string(lane_obj, "filament_vendor");
         auto* bundle = GUI::wxGetApp().preset_bundle;
-        tray.tray_info_idx = bundle
-            ? bundle->filaments.filament_id_by_type(tray.tray_type)
-            : map_filament_type_to_generic_id(tray.tray_type);
+        if (tray.tray_info_idx.empty() && bundle && !tray.filament_vendor.empty()) {
+            std::string mid = find_closest_color_preset_by_vendor_and_type(
+                bundle->filaments, tray.filament_vendor, tray.tray_type, tray.tray_color);
+            if (!mid.empty()) tray.tray_info_idx = mid;
+        }
+        if (tray.tray_info_idx.empty()) {
+            tray.tray_info_idx = bundle
+                ? bundle->filaments.filament_id_by_type(tray.tray_type)
+                : map_filament_type_to_generic_id(tray.tray_type);
+        }
 
         max_lane_index = std::max(max_lane_index, lane_index);
         trays.push_back(tray);

src/slic3r/Utils/MoonrakerPrinterAgent.hpp

@@ -94,6 +94,7 @@ protected:
         std::string tray_type;           // Material type (e.g., "PLA", "ASA")
         std::string tray_color;          // Raw color (#RRGGBB, 0xRRGGBB, or RRGGBBAA)
         std::string tray_info_idx;       // Setting ID (optional)
+        std::string filament_vendor;     // Vendor hint from bridge (optional, KX-Bridge sendet das)
         int         bed_temp = 0;        // Optional
         int         nozzle_temp = 0;     // Optional
     };