[sedax90]

Summary

• Copy As in the Linux grid adds Text Table, JSON Lines, One Row and INSERT Without Generated Keys.
• Text Table: drawn by comfy-table (already in the lock through DuckDB), bordered as psql draws it. Numbers align right by the grid's own rule, a line break in a cell starts a continuation line, a tab expands to 8-column stops, other control characters and bidi controls show as escapes. A table past 64 MiB is refused with a toast.
• JSON Lines: one object per line, each line ending in a newline as jsonlines.org specifies. A JSON value stored over several lines stays on its row.
• One Row: the values as SQL literals of the connection's engine, separated by , , as IN Clause writes them. Offered only where the engine speaks SQL.
• INSERT Without Generated Keys leaves out what the server gives a new row: a numbered column, or a table's only key column whose default is an expression, such as a UUID. Paste into the grid uses the same rule. Offered only when such a column is on screen.
• Copy As INSERT and SQL export now write a numbered column the way the engine accepts it: PostgreSQL 10 and later adds OVERRIDING SYSTEM VALUE, SQL Server wraps the statements in SET IDENTITY_INSERT ... ON/OFF, the OFF in a GO batch of its own so a run that fails partway still ends it. Before, GENERATED ALWAYS and IDENTITY columns refused the rows.
• SQL Server reads a system-versioned table's period columns as generated, so a copied row leaves them to the server.
• SQLite treats every INTEGER PRIMARY KEY rowid alias as numbered, a default or not: SQLite 3.54 numbers INTEGER PRIMARY KEY DEFAULT 5 from 1.
• Copy As is grouped into rows and CSV, structured text, SQL, and the column name.

Test plan

• metadata::integer_primary_key_with_default_still_numbers_itself replaces integer_primary_key_with_default_is_not_auto_increment: the old test pinned the opposite of what SQLite does.
• identity_insert integration tests on PostgreSQL 18 and SQL Server 2022 run the copied INSERTs against identity, serial and system-versioned tables, and a SQL Server copy that fails on a duplicate key under XACT_ABORT ON.
• verify.sh --platform linux test: tablepro-core 835, sqlite 256, mssql 132, postgres 118 passed; the app's clipboard, data_grid, export, browse_tab and paste tests all passed.
• verify.sh --platform linux lint and l10n: clean.
• Copy As before (main) and after, light and dark, and the Text Table copy pasted into the editor: