implement server mvp: fastapi app, org formatter, sqlite store, tests, dockerfile

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

server/app/org_writer.py

@@ -0,0 +1,68 @@
+import re
+from datetime import datetime, timezone
+from typing import Sequence
+
+from .models import CaptureRequest
+
+
+def normalize_tags(tags: Sequence[str]) -> list[str]:
+    seen: set[str] = set()
+    result: list[str] = []
+    for raw in tags:
+        tag = raw.strip().lower()
+        tag = tag.lstrip("#")
+        tag = tag.replace(" ", "_")
+        tag = re.sub(r"[^a-z0-9_]", "", tag)
+        if tag and tag not in seen:
+            seen.add(tag)
+            result.append(tag)
+    return result
+
+
+def _org_tags(tags: list[str]) -> str:
+    if not tags:
+        return ""
+    return " :" + ":".join(tags) + ":"
+
+
+def _created_stamp(created_at: str) -> str:
+    """Parse ISO-8601 datetime and format as org inactive timestamp."""
+    try:
+        dt = datetime.fromisoformat(created_at)
+    except ValueError:
+        dt = datetime.now(timezone.utc)
+    day_abbr = dt.strftime("%a").lower()
+    return f"[{dt.strftime('%Y-%m-%d')} {day_abbr} {dt.strftime('%H:%M')}]"
+
+
+def _property_drawer(created_stamp: str, source: str, capture_id: str) -> str:
+    return (
+        ":PROPERTIES:\n"
+        f":CREATED: {created_stamp}\n"
+        f":SOURCE: {source}\n"
+        f":ID: {capture_id}\n"
+        ":END:"
+    )
+
+
+def format_capture(capture: CaptureRequest) -> str:
+    tags = normalize_tags(capture.tags)
+    tag_str = _org_tags(tags)
+    created_stamp = _created_stamp(capture.created_at)
+    drawer = _property_drawer(created_stamp, capture.device, capture.id)
+
+    if capture.kind == "todo":
+        heading = f"* TODO {capture.body}{tag_str}"
+        return f"{heading}\n{drawer}\n"
+
+    # note
+    lines = capture.body.split("\n")
+    first_line = lines[0].rstrip()
+    is_multiline = len(lines) > 1 and any(l.strip() for l in lines[1:])
+
+    if is_multiline:
+        heading = f"* note: {first_line}{tag_str}"
+        return f"{heading}\n{drawer}\n\n{capture.body}\n"
+    else:
+        heading = f"* note{tag_str}"
+        return f"{heading}\n{drawer}\n\n{capture.body}\n"