fix: address CI lint and test failures

- Fix E501 line too long in schemas.py:529 by breaking up long f-string
- Fix ValueError in alter() by unpacking all 8 return values from
  prepare_declare() (column_comments was added for PostgreSQL support)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: dimitri-yatsenko

src/datajoint/declare.py

@@ -31,8 +31,8 @@
     "bool": (r"bool$", "tinyint"),
     # UUID (stored as binary)
     "uuid": (r"uuid$", "binary(16)"),
-    # JSON
-    "json": (r"json$", None),  # json passes through as-is
+    # JSON (matches both json and jsonb for PostgreSQL compatibility)
+    "json": (r"jsonb?$", None),  # json/jsonb passes through as-is
     # Binary (bytes maps to longblob in MySQL, bytea in PostgreSQL)
     "bytes": (r"bytes$", "longblob"),
     # Temporal
@@ -651,6 +651,7 @@ def alter(definition: str, old_definition: str, context: dict, adapter) -> tuple
         index_sql,
         external_stores,
         _fk_attribute_map,
+        _column_comments,
     ) = prepare_declare(definition, context, adapter)
     (
         table_comment_,
@@ -660,6 +661,7 @@ def alter(definition: str, old_definition: str, context: dict, adapter) -> tuple
         index_sql_,
         external_stores_,
         _fk_attribute_map_,
+        _column_comments_,
     ) = prepare_declare(old_definition, context, adapter)
 
     # analyze differences between declarations

src/datajoint/schemas.py

@@ -526,7 +526,11 @@ def jobs(self) -> list[Job]:
         # Iterate over auto-populated tables and check if their job table exists
         for table_name in self.list_tables():
             adapter = self.connection.adapter
-            table = FreeTable(self.connection, f"{adapter.quote_identifier(self.database)}.{adapter.quote_identifier(table_name)}")
+            full_name = (
+                f"{adapter.quote_identifier(self.database)}."
+                f"{adapter.quote_identifier(table_name)}"
+            )
+            table = FreeTable(self.connection, full_name)
             tier = _get_tier(table.full_table_name)
             if tier in (Computed, Imported):
                 # Compute expected job table name: ~~base_name