feat: add postgres storage and remote sync

core/parsers.py

@@ -0,0 +1,50 @@
+import re
+from typing import Any, Dict, List
+
+
+USERNAME_PATTERN = re.compile(r"@([A-Za-z0-9_]{3,})")
+TME_PATTERN = re.compile(r"(?:https?://)?t\.me/([A-Za-z0-9_]{3,})")
+ID_PATTERN = re.compile(r"`(\d{4,})`")
+
+
+def extract_entities(text: str) -> List[Dict[str, Any]]:
+    if not text:
+        return []
+
+    entities: List[Dict[str, Any]] = []
+    seen = set()
+
+    for user_id in set(ID_PATTERN.findall(text)):
+        key = ("user_id", user_id)
+        if key not in seen:
+            seen.add(key)
+            entities.append({
+                "type": "user_id",
+                "value": user_id
+            })
+
+    for username in set(USERNAME_PATTERN.findall(text)):
+        normalized = username.strip()
+        if not normalized:
+            continue
+        key = ("username", normalized.lower())
+        if key not in seen:
+            seen.add(key)
+            entities.append({
+                "type": "username",
+                "value": normalized.lower(),
+                "display": normalized
+            })
+
+    for link in set(TME_PATTERN.findall(text)):
+        normalized = f"t.me/{link}"
+        key = ("tme_link", normalized.lower())
+        if key not in seen:
+            seen.add(key)
+            entities.append({
+                "type": "tme_link",
+                "value": normalized.lower(),
+                "display": normalized
+            })
+
+    return entities