Quick fixes: Windows terminal keys, SQL formatting, AI charts

[broisnischal]

Fixes from testing 2.2.5.

• Terminal: psql, mysql and sqlite3 on Windows have no readline, so the tab now sends the console's own editing keys instead of ^W and ^E^U. Tab opens suggestions, Ctrl+L runs cls, and psql's prompt is found by its text there. macOS gets Cmd+arrows, Cmd+Backspace and a Ctrl+Backspace that deletes a word.
• SQL: Format keeps a short statement on one line and breaks a long one by clause, in the connection's dialect. Open in SQL editor writes one line, leaves out the default schema, is back on the toolbar, and Ctrl+click runs the query.
• AI: tool calls a model writes as JSON text now run. The prompt lets it take the steps a request needs, and hidden query cards no longer leave blank gaps in the chat.
• App: password text stays clear of the show button, and the styled tooltip no longer gives way to the native one.

Tests and svelte-check pass on every commit. The Windows key handling was checked headlessly with a Windows user agent and a fake console, not yet on a Windows machine.