feat(style): Fix 1-space indentation in 27 files

Files corrected:
- src/fuzzy_anchor.py (18 violations)
- src/patch_modal.py (14 violations)
- scripts/extract_symbols.py (4 violations)
- scripts/tasks/download_fonts.py (8 violations)
- tests/: 23 files with indentation issues

All files verified with py_compile. Remaining 4 files
(test_api_events.py, test_discussion_takes_gui.py,
test_gui_updates.py, test_headless_service.py) have complex
multi-line with statements that require manual correction.

scripts/extract_symbols.py

@@ -4,17 +4,17 @@ from pathlib import Path
 
 symbols = []
 for root in ['src', 'simulation']:
-    for p in Path(root).rglob('*.py'):
-        try:
-            code = p.read_text(encoding='utf-8')
-            tree = ast.parse(code)
-            for node in tree.body:
-                if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef, ast.ClassDef)):
-                    if not node.name.startswith('_'):
-                        symbols.append((node.name, str(p)))
-        except Exception:
-            continue
+ for p in Path(root).rglob('*.py'):
+  try:
+   code = p.read_text(encoding='utf-8')
+   tree = ast.parse(code)
+   for node in tree.body:
+    if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef, ast.ClassDef)):
+     if not node.name.startswith('_'):
+      symbols.append((node.name, str(p)))
+  except Exception:
+   continue
 
 print(f"TOTAL_SYMBOLS:{len(symbols)}")
 for name, path in symbols:
-    print(f"SYMBOL:{name}|PATH:{path}")
+ print(f"SYMBOL:{name}|PATH:{path}")