feat(skd): support @file references for query text in skd-compile and skd-edit

Allows using "@path/to/file.sql" instead of inline query text.
Path resolved relative to definition file, then CWD; absolute paths supported.

Closes #9

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

.claude/skills/skd-compile/scripts/skd-compile.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# skd-compile v1.0 — Compile 1C DCS from JSON
+# skd-compile v1.1 — Compile 1C DCS from JSON
 # Source: https://github.com/Nikolay-Shirokov/cc-1c-skills
 import argparse
 import json
@@ -13,6 +13,25 @@ def esc_xml(s):
     return s.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;').replace('"', '&quot;')
 
 
+def resolve_query_value(val, base_dir):
+    if not val.startswith("@"):
+        return val
+    file_path = val[1:]
+    if os.path.isabs(file_path):
+        candidates = [file_path]
+    else:
+        candidates = [
+            os.path.join(base_dir, file_path),
+            os.path.join(os.getcwd(), file_path),
+        ]
+    for c in candidates:
+        if os.path.exists(c):
+            with open(c, 'r', encoding='utf-8-sig') as f:
+                return f.read().rstrip()
+    print(f"Query file not found: {file_path} (searched: {', '.join(candidates)})", file=sys.stderr)
+    sys.exit(1)
+
+
 def emit_mltext(lines, indent, tag, text):
     if not text:
         lines.append(f"{indent}<{tag}/>")
@@ -530,7 +549,8 @@ def emit_data_set(lines, ds, indent, default_source):
 
     # Type-specific content
     if ds_type == 'DataSetQuery':
-        lines.append(f'{indent}\t<query>{esc_xml(str(ds.get("query", "")))}</query>')
+        query_text = resolve_query_value(str(ds.get("query", "")), query_base_dir)
+        lines.append(f'{indent}\t<query>{esc_xml(query_text)}</query>')
         if ds.get('autoFillFields') is False:
             lines.append(f'{indent}\t<autoFillFields>false</autoFillFields>')
     elif ds_type == 'DataSetObject':
@@ -1351,6 +1371,10 @@ def main():
         print("JSON must have at least one entry in 'dataSets'", file=sys.stderr)
         sys.exit(1)
 
+    # Base directory for resolving @file references in query
+    global query_base_dir
+    query_base_dir = os.path.dirname(def_file) if args.DefinitionFile else os.getcwd()
+
     # --- 2. Resolve defaults ---
 
     # DataSources