fix(camping): swap tent panel L/R to render apex /\ not \/

Bedrock mirrors the panel geometry across the block's local X axis
relative to the .geo.json, so the player's column needs panel_r and
the adjacent column needs panel_l for the roof seam to peak correctly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

camping-supplies-addon/camping_supplies_BP/scripts/main.js

@@ -167,8 +167,9 @@ function tryPlaceTent(player) {
 
   // A-frame layout: 3 long × 2 wide, single block tall. Each cross-section is a
   // pair of slope panels meeting at the apex on the seam between the two columns.
-  // w=0 is the player's column → LEFT side of the tent (panel_l).
-  // w=1 is one step right → RIGHT side of the tent (panel_r).
+  // Bedrock renders the panel geometry mirrored across the block's local X axis
+  // relative to a literal read of the .geo.json, so panel_r goes in the player's
+  // column and panel_l goes one step right to land /\ instead of \/.
   const blockFacing = blockFacingFor(facing);
   const canvasCells = [];
   for (let l = 0; l < 3; l++) {
@@ -176,13 +177,13 @@ function tryPlaceTent(player) {
       x: ox + l * fx,
       y: oy,
       z: oz + l * fz,
-      block: TENT_PANEL_L,
+      block: TENT_PANEL_R,
     });
     canvasCells.push({
       x: ox + l * fx + rx,
       y: oy,
       z: oz + l * fz + rz,
-      block: TENT_PANEL_R,
+      block: TENT_PANEL_L,
     });
   }