fix: follow symlinks in model discovery, update model catalog

- Add -L flag to find in benchmark scripts (follows symlinks to /data/models/llms/)
- Exclude mmproj-*.gguf (vision projection files, not LLM models)
- Update configs/models.conf: remove Qwen3-Coder (user prefers Qwen3.5-35B-A3B),
  add Qwen3.5-27B-Q4_K_M and Q8_0 variant, reflect actual downloaded models

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/benchmark/run-baseline.sh

@@ -49,7 +49,7 @@ fi
 
 # Find models
 mapfile -t MODEL_PATHS < <(
-    find "$MODEL_DIR" -type f -name '*.gguf' \
+    find -L "$MODEL_DIR" -type f -name '*.gguf' -not -name 'mmproj-*' \
         \( -name '*-00001-of-*.gguf' -o -not -name '*-000*-of-*.gguf' \) \
         | sort
 )

scripts/benchmark/run-suite.sh

@@ -62,7 +62,7 @@ log_info "Backends: ${available_backends[*]}"
 
 # Find models
 mapfile -t MODEL_PATHS < <(
-    find "$MODEL_DIR" -type f -name '*.gguf' \
+    find -L "$MODEL_DIR" -type f -name '*.gguf' -not -name 'mmproj-*' \
         \( -name '*-00001-of-*.gguf' -o -not -name '*-000*-of-*.gguf' \) \
         | sort
 )

scripts/benchmark/setup.sh

@@ -71,10 +71,10 @@ done
 # ── 3. Check for test models ────────────────────────────
 log_info "Checking for test models in $MODEL_DIR..."
 
-model_count=$(find "$MODEL_DIR" -name "*.gguf" 2>/dev/null | wc -l)
+model_count=$(find -L "$MODEL_DIR" -name "*.gguf" -not -name "mmproj-*" 2>/dev/null | wc -l)
 if (( model_count > 0 )); then
     log_success "Found $model_count model(s):"
-    find "$MODEL_DIR" -name "*.gguf" | while read -r f; do
+    find -L "$MODEL_DIR" -name "*.gguf" -not -name "mmproj-*" | while read -r f; do
         size=$(du -h "$f" | cut -f1)
         printf "  %s (%s)\n" "$(basename "$f")" "$size"
     done