Merge branch 'main' into production

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.

backend/add_reaction_table.py

@@ -0,0 +1,26 @@
+from sqlmodel import Session, create_engine, text
+from database import DATABASE_URL
+
+def add_reaction_table():
+    engine = create_engine(DATABASE_URL)
+    with Session(engine) as session:
+        try:
+            session.exec(text("""
+                CREATE TABLE IF NOT EXISTS reaction (
+                    id SERIAL PRIMARY KEY,
+                    user_id INTEGER NOT NULL REFERENCES "user"(id),
+                    entity_type VARCHAR NOT NULL,
+                    entity_id INTEGER NOT NULL,
+                    emoji VARCHAR NOT NULL,
+                    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+                )
+            """))
+            session.exec(text("CREATE INDEX IF NOT EXISTS ix_reaction_entity_type ON reaction (entity_type)"))
+            session.exec(text("CREATE INDEX IF NOT EXISTS ix_reaction_entity_id ON reaction (entity_id)"))
+            session.commit()
+            print("Successfully created reaction table")
+        except Exception as e:
+            print(f"Error creating table: {e}")
+
+if __name__ == "__main__":
+    add_reaction_table()