feat: Improve render.report

Author: SilverRainZ

src/sphinxnotes/data/render.py

@@ -104,15 +104,18 @@ def render(
 
     if tmpl.debug:
         nsstr = '\n'.join(n.pformat() for n in ns)
-        ns += report('data', pformat(data))
-        ns += report('template', pformat(tmpl))
-        ns += report('rendered node', nsstr)
+        ns += report('data', pformat(data), lang='python')
+        ns += report(f'template (phase: {tmpl.phase}, debug: {tmpl.debug}):', tmpl.text, lang='jinja')
+        ns += report('rendered node', nsstr, lang='xml')
 
     return ns
 
 
-def report(title: str, content: str | None) -> nodes.system_message:
-    sm = nodes.system_message(title + ':', type='WARNING', level=2, source='')
-    if content:
-        sm += nodes.literal_block(content, content)
+def report(text: str, code: str | None, lang: str | None = None) -> nodes.system_message:
+    sm = nodes.system_message(text + ':', type='WARNING', level=2, source='')
+    if code:
+        blk = nodes.literal_block(code, code)
+        if lang:
+            blk['language'] = lang
+        sm += blk
     return sm