Reduce collision trapping and improve /unstuck

Add root, branch, thorn, moss, ivy, and other natural doodads to the no-block foliage list. /unstuck now moves the player 5 units forward instead of resetting in place.

src/core/application.cpp

@@ -1,6 +1,7 @@
 #include "core/application.hpp"
 #include "core/coordinates.hpp"
 #include <unordered_set>
+#include <cmath>
 #include "core/spawn_presets.hpp"
 #include "core/logger.hpp"
 #include "rendering/renderer.hpp"
@@ -539,14 +540,18 @@ void Application::setupUICallbacks() {
         loadOnlineWorldTerrain(mapId, x, y, z);
     });
 
-    // Unstuck callback — re-run spawn search at current XY to find valid floor
+    // Unstuck callback — move 5 units forward (based on facing) and re-snap to floor
     gameHandler->setUnstuckCallback([this]() {
         if (!renderer || !renderer->getCameraController()) return;
         auto* cc = renderer->getCameraController();
         auto* ft = cc->getFollowTargetMutable();
         if (!ft) return;
-        // Use reset() which does a full multi-radius WMO/terrain floor search
-        cc->setDefaultSpawn(*ft, cc->getYaw(), cc->getPitch());
+        // Move 5 units in the direction the player is facing
+        float yaw = cc->getYaw();
+        ft->x += 5.0f * std::sin(yaw);
+        ft->y += 5.0f * std::cos(yaw);
+        // Re-snap to floor at the new position
+        cc->setDefaultSpawn(*ft, yaw, cc->getPitch());
         cc->reset();
     });
 

src/game/game_handler.cpp

@@ -4014,7 +4014,7 @@ void GameHandler::useItemById(uint32_t itemId) {
 void GameHandler::unstuck() {
     if (unstuckCallback_) {
         unstuckCallback_();
-        addSystemChatMessage("Unstuck: position reset to floor.");
+        addSystemChatMessage("Unstuck: moved 5 units forward.");
     }
 }
 

src/rendering/m2_renderer.cpp

@@ -715,7 +715,16 @@ bool M2Renderer::loadModel(const pipeline::M2Model& model, uint32_t modelId) {
             (lowerName.find("fireflys") != std::string::npos) ||
             (lowerName.find("mushroom") != std::string::npos) ||
             (lowerName.find("fungus") != std::string::npos) ||
-            (lowerName.find("toadstool") != std::string::npos);
+            (lowerName.find("toadstool") != std::string::npos) ||
+            (lowerName.find("root") != std::string::npos) ||
+            (lowerName.find("branch") != std::string::npos) ||
+            (lowerName.find("thorn") != std::string::npos) ||
+            (lowerName.find("moss") != std::string::npos) ||
+            (lowerName.find("ivy") != std::string::npos) ||
+            (lowerName.find("seaweed") != std::string::npos) ||
+            (lowerName.find("kelp") != std::string::npos) ||
+            (lowerName.find("cattail") != std::string::npos) ||
+            (lowerName.find("reed") != std::string::npos);
         bool treeLike = (lowerName.find("tree") != std::string::npos);
         foliageOrTreeLike = (foliageName || treeLike);
         bool hardTreePart =