chore(main): release 1.7.0

[github-actions]

🤖 I have created a release beep boop

1.7.0 (2026-09-06)

Features

• config: publish the config contract at its registry key (#75) (dea5355)
• demo: ship extensionless demo showcasing all dialog features (#63) (d54145c)
• dialogs: add multi-cell select rows and column headers (#70) (e071364)
• dialogs: cascade sub-dialogs as stacked shadowed panels (#61) (21659a3)
• dialogs: publish the dialogs contract at its registry key (#76) (47b10a4)
• dialogs: render sub-dialogs as columns of one panel (#64) (14d35ed)
• grid: add the grid plugin for aligned printed output (#69) (c9c2912)
• grid: drive grid rows as a select with per-row actions (#71) (e3111c4)
• grid: publish the grid contract at its registry key (#74) (1ee5e3b)
• theme: add theme variables and move dialogs behind them (#68) (ce8b428)
• theme: publish the theming contract at its registry key (#73) (4cdfc59)

Bug Fixes

• dialogs: guarantee a cell's width by construction (#66) (139e185)

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[github-actions]

🤖 Created releases:

• v1.7.0

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