Initial commit: note-taking/task-tracking app with LLM integration scaffold

Vue 3 + TypeScript frontend with Pinia stores, markdown rendering (marked + DOMPurify),
wikilink/tag linkification, and autocomplete. Quart async backend with SQLAlchemy 2.0,
PostgreSQL ARRAY columns, task-note companion linking, backlinks, and note-to-task
conversion. Docker Compose setup with PostgreSQL 16 and Ollama.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/fabledassistant/utils/tags.py

@@ -0,0 +1,11 @@
+import re
+
+_CODE_FENCE_RE = re.compile(r"```[\s\S]*?```|`[^`\n]+`")
+_TAG_RE = re.compile(r"(?<!\w)#([\w]+(?:/[\w]+)*)")
+
+
+def extract_tags(body: str) -> list[str]:
+    """Extract #tags from body text, ignoring code blocks."""
+    cleaned = _CODE_FENCE_RE.sub("", body)
+    tags = _TAG_RE.findall(cleaned)
+    return sorted(set(tags))