Improve summit terrain, mobile HUD and multiplayer night equipment

Add the Blender flashlight asset with a 600 lm beam and reduced bloom, shared-mode self badge, and compact phone controls. Relocate the summit marker, blend terrain seams, widen walking routes, and align local server configuration on port 2027.

public/osm-derived.json

@@ -10,7 +10,7 @@
       {
         "id": "way/337498789",
         "label": "정상 암반길",
-        "width": 3.2,
+        "width": 5.2,
         "points": [
           [
             126.9642427,
@@ -57,7 +57,7 @@
       {
         "id": "way/37751526",
         "label": "남쪽 하산 계단길",
-        "width": 2.4,
+        "width": 4.4,
         "points": [
           [
             126.9652191,
@@ -148,7 +148,7 @@
       {
         "id": "way/337498787",
         "label": "동쪽 계단길",
-        "width": 2.2,
+        "width": 4.2,
         "points": [
           [
             126.9646956,
@@ -167,7 +167,7 @@
       {
         "id": "way/337498788",
         "label": "북쪽 능선길",
-        "width": 2.4,
+        "width": 4.4,
         "points": [
           [
             126.9652188,

public/terrain/summit-mesh.json

@@ -1,13 +1,13 @@
 {
   "version": 1,
-  "sourceHash": "504596fa53badac50aad45e4f4aff3431257f26a39a8c5438b044c7e4ffbdaca",
-  "bufferHash": "5916b60f37298fbb046645b0854f233d2926ee817641841d8c38dad071c26eef",
-  "byteLength": 15601904,
-  "gzipBytes": 6138350,
-  "originalVertices": 1180560,
-  "vertices": 209224,
-  "triangles": 393520,
-  "originalAttributeBytes": 61389120,
-  "generateMs": 3849.3699000000006,
-  "decodeMs": 13.474900000001071
+  "sourceHash": "6f03c38b2007114b94747b0abbcc26c56b408b0353fc3068b19cc17518542ecc",
+  "bufferHash": "8fa1ab6646cacc15fc1e84ace034a71826a8dc50f9d5dc2c15aab39e290166d6",
+  "byteLength": 16099324,
+  "gzipBytes": 6369382,
+  "originalVertices": 1219830,
+  "vertices": 215769,
+  "triangles": 406610,
+  "originalAttributeBytes": 63431160,
+  "generateMs": 4164.3897,
+  "decodeMs": 16.178200000000288
 }