Document smoke test progress and current blocker

Progress: ~90% complete, blocked on map texture loading

Successfully fixed:
- Audio crashes (Sound = 0 config)
- SpringBoard archive structure (modinfo at root)
- Version variable handling
- spring-headless discovery with --isolation flag
- Map generation options (MAPOPTIONS + MODOPTIONS)

Current blocker:
- Spring segfaults at "Loading Square Textures"
- Minimal SMF map lacks proper DXT1-compressed .smt texture files
- Need image processing tools or pre-existing minimal map

SpringBoard Core loads successfully up to texture stage.
LuaUI (and RmlUi) load AFTER textures, so can't verify RmlUi yet.

See .github/workflows/SMOKE_TEST_STATUS.md for full details.

Author: claude

.github/workflows/SMOKE_TEST_STATUS.md

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+# Smoke Test Status
+
+## Current Progress: ~90% Complete
+
+### ✅ Successfully Fixed:
+1. **Audio Crashes**: `Sound = 0` in springsettings.cfg completely disables OpenAL  
+2. **SpringBoard Archive**: Fixed modinfo.lua structure (must be at archive root)
+3. **Version Variable**: Changed from `$VERSION` to `test` for CI
+4. **Game Name Matching**: Spring concatenates name + version = "SpringBoard Core test"
+5. **Spring-Headless Discovery**: Using `spring-headless --isolation` (from BAR testing)
+6. **Map Generation Options**: Added MAPOPTIONS (new_map_x, new_map_y) and MODOPTIONS (MapSeed)
+
+### ❌ Current Blocker: Map Texture Loading
+
+**Issue**: Spring segfaults at "Loading Square Textures" stage
+
+**Root Cause**: The minimal SMF map created doesn't have proper DXT1-compressed .smt texture tile files
+
+**Why This Blocks Everything**: 
+- Spring requires valid map WITH textures to load
+- LuaUI (which contains RmlUi) only loads AFTER map textures
+- Map generation happens in SpringBoard's Lua code AFTER LuaUI loads
+- Can't verify RmlUi initialization without getting past texture loading
+
+**What We Tried**:
+1. ✗ Mapinfo.lua-only map (Spring requires .smf file)
+2. ✗ Minimal .smf with header only (crashes on texture loading)
+3. ✗ Using test_blank.sdd with empty mapfile (Spring requires actual file)
+4. ✗ Map downloads (403 Forbidden in CI)
+5. ✓ Spring-headless (works better but still crashes on textures)
+
+**What We Need**:
+- Valid .smt texture files with DXT1 compression, OR
+- Access to pre-existing minimal Spring map with working textures, OR  
+- Way to make Spring skip texture loading entirely (doesn't exist)
+
+**Creating proper .smt files requires**:
+- Image processing libraries (PIL/Pillow) - not available
+- DXT1 compression tools (libsquish/nvdxt) - not available
+- Or: MapConv tool from Spring ecosystem
+
+## Test Configuration
+
+**Script.txt** (in test-engine/, gitignored):
+```
+[GAME]
+{
+  GameType=SpringBoard Core test;
+  MapName=TestMinimal2x2 v1.0;
+  IsHost=1;
+  MyPlayerName=TestPlayer;
+  [MAPOPTIONS]
+  {
+    new_map_x=10;
+    new_map_y=8;
+  }
+  [MODOPTIONS]
+  {
+    MapSeed=42;
+  }
+  [PLAYER0]
+  {
+    Name=TestPlayer;
+    Team=0;
+    IsFromDemo=0;
+    Spectator=1;
+  }
+  [TEAM0]
+  {
+    TeamLeader=0;
+    AllyTeam=0;
+  }
+  [ALLYTEAM0]
+  {
+  }
+}
+```
+
+**Command**:
+```bash
+spring-headless --isolation --write-dir /absolute/path/to/test-data script.txt
+```
+
+**What Works**:
+- SpringBoard Core loads successfully  
+- All archives scan properly (285ms vs hanging with symlinks)
+- Game initialization completes through "Loading Models"
+- Gets to texture loading stage consistently
+
+**Crash Point**:
+```
+[t=00:00:02.277888] [LoadScreen::SetLoadMessage] text="Loading Square Textures"
+Segmentation fault
+```
+
+## Next Steps
+
+1. Find/create valid minimal Spring map with proper texture files
+2. Or: Package existing small map (if licensing allows)
+3. Or: Use Spring map creation tools in CI to generate valid map
+4. Once map loads: Verify LuaUI initializes
+5. Once LuaUI loads: Verify RmlUi messages in infolog
+6. Update CI workflow to use spring-headless with --isolation flag
+
+## References
+
+- BAR headless testing: https://github.com/beyond-all-reason/Beyond-All-Reason/tree/master/tools/headless_testing
+- Spring SMF format: https://springrts.com/wiki/Mapdev:SMF_format
+- Spring config vars: `./spring --list-config-vars | grep Sound`