Release v4.44.1

Added

• Regression coverage that annotates every line of the canonical corpus and a sample model with a unique comment and checks that each comment survives exactly once, never shares a printed line with another, and prints the same way twice.

Fixed

• Trailing comments stay on their intended printed lines for the remaining line kinds that were placed by source offset: other descriptions, behavior order, reaction triggers, values and conditions, and interaction triggers, conditions and continuations. The offset fallback is gone.
• Comments no longer merge into a declaration's header comment, or move onto an opening code fence (where reparsing dropped the whole code block), for repeated interaction directives, arrangement headers, legacy code-language lines and multi-line authorize / require … or continuations.
• When a single-valued directive is repeated and the last one wins (for example file, query by, command handler, capture source, projection parent, table on row-click, action label or navigate), comments on the replaced lines keep their own lines instead of joining the header comment.

The final review rounds were done by a single model provider (Claude Opus); cross-provider review was unavailable.

Closes #293