feat(editor): add --gen-mesh-stove pot-bellied wood stove

85th procedural mesh primitive. Two-cylinder pot-bellied
stove silhouette:

  • body — wide round Y-axis cylinder (the stove body that
    holds the firebox)
  • chimney — thin tall Y-axis cylinder rising from the top
    of the body (the smoke vent)

Distinct from --gen-mesh-forge (square stone hearth + hood
+ chimney) and --gen-mesh-chimney (just the rectangular
shaft) — stove is the round-cylinder home / workshop
variant for cottages, smithies, alchemist labs, ranger
huts, dwarven mead-hall corner heaters.

Validates that chimneyR < bodyR so the silhouette always
reads as a wider-bottom-with-thinner-stack shape rather
than a flat tube.

Watertight under weld (verified 192 manifold edges, 0
boundary, 0 non-manifold).

tools/editor/cli_arg_required.cpp

@@ -68,6 +68,7 @@ const char* const kArgRequired[] = {
     "--gen-mesh-planter-box", "--gen-mesh-urn", "--gen-mesh-candle",
     "--gen-mesh-lantern", "--gen-mesh-chalice",
     "--gen-mesh-standing-torch", "--gen-mesh-scroll-case",
+    "--gen-mesh-stove",
     "--gen-camp-pack", "--gen-blacksmith-pack", "--gen-village-pack",
     "--gen-temple-pack", "--gen-graveyard-pack",
     "--gen-garden-pack", "--gen-dock-pack", "--gen-tavern-pack",

tools/editor/cli_gen_mesh.cpp

@@ -5161,6 +5161,46 @@ int handleTent(int& i, int argc, char** argv) {
     return 0;
 }
 
+int handleStove(int& i, int argc, char** argv) {
+    // Pot-bellied wood stove: wide cylindrical body + thin
+    // tall chimney column rising from the top of the body.
+    // Distinct from --gen-mesh-forge (square stone hearth +
+    // hood + chimney) — stove is the round-cylinder home/
+    // workshop variant. The 85th procedural mesh primitive.
+    std::string womBase = argv[++i];
+    float bodyR    = 0.30f;
+    float bodyH    = 0.65f;
+    float chimneyR = 0.07f;
+    float chimneyH = 1.10f;
+    int   sides    = 16;
+    parseOptFloat(i, argc, argv, bodyR);
+    parseOptFloat(i, argc, argv, bodyH);
+    parseOptFloat(i, argc, argv, chimneyR);
+    parseOptFloat(i, argc, argv, chimneyH);
+    parseOptInt(i, argc, argv, sides);
+    if (bodyR <= 0 || bodyH <= 0 || chimneyR <= 0 || chimneyH <= 0 ||
+        sides < 6 || sides > 64 || chimneyR >= bodyR) {
+        std::fprintf(stderr,
+            "gen-mesh-stove: dims > 0; sides 6..64; "
+            "chimneyR < bodyR\n");
+        return 1;
+    }
+    stripExt(womBase, ".wom");
+    wowee::pipeline::WoweeModel wom;
+    initWomDefaults(wom, womBase);
+    addClosedCylinderY(wom, bodyR, 0.0f, bodyH, sides);
+    addClosedCylinderY(wom, chimneyR, bodyH, bodyH + chimneyH, sides);
+    finalizeAsSingleBatch(wom);
+    setCenteredBoundsXZ(wom, bodyR, bodyR, bodyH + chimneyH);
+    if (!saveWomOrError(wom, womBase, "gen-mesh-stove")) return 1;
+    printWomWrote(womBase);
+    std::printf("  body       : R=%.3f x %.3f tall\n", bodyR, bodyH);
+    std::printf("  chimney    : R=%.3f x %.3f tall (%d sides)\n",
+                chimneyR, chimneyH, sides);
+    printWomMeshStats(wom);
+    return 0;
+}
+
 int handleScrollCase(int& i, int argc, char** argv) {
     // Cylindrical scroll case / map tube: thin tall cylindrical
     // body with an optional shorter wider cap on top. Distinct
@@ -7445,6 +7485,7 @@ constexpr MeshEntry kMeshTable[] = {
     {"--gen-mesh-chalice",        1, handleChalice},
     {"--gen-mesh-standing-torch", 1, handleStandingTorch},
     {"--gen-mesh-scroll-case",    1, handleScrollCase},
+    {"--gen-mesh-stove",          1, handleStove},
     {"--gen-camp-pack",           1, handleGenCampPack},
     {"--gen-blacksmith-pack",     1, handleGenBlacksmithPack},
     {"--gen-village-pack",        1, handleGenVillagePack},

tools/editor/cli_help.cpp

@@ -330,6 +330,8 @@ void printUsage(const char* argv0) {
     std::printf("                         Standing torch: tall thin post + wider fire-bowl on top (hall lining / dungeon entry / ceremony path)\n");
     std::printf("  --gen-mesh-scroll-case <wom-base> [bodyR] [bodyH] [capR] [capH] [sides]\n");
     std::printf("                         Scroll case: thin tall cylinder + optional wider cap (set capR=0 to skip) — libraries / mage scenes\n");
+    std::printf("  --gen-mesh-stove <wom-base> [bodyR] [bodyH] [chimneyR] [chimneyH] [sides]\n");
+    std::printf("                         Pot-bellied stove: round cylindrical body + thin chimney column on top (cottage / workshop heating)\n");
     std::printf("  --gen-camp-pack <outDir>\n");
     std::printf("                         Convenience: emit tent + firepit + bedroll + canopy + woodpile + haystack into outDir as 6 .wom files\n");
     std::printf("  --gen-blacksmith-pack <outDir>\n");