Feat/1253 basic punctuation

[sudhanshu112233shukla]

This PR introduces the “Simple Punctuation” transformation step requested in issue #1253, enabling automatic conversion of spoken punctuation commands—such as “period,” “comma,” and “new line”—into their corresponding symbols during post-processing. The update adds a new simple_punctuation entry to the transformation registry and updates the database schema to version 3. The transformation logic, implemented in transformation-logic.ts, uses carefully designed regular expressions with word-boundary checks to avoid false positives (for example, ensuring that words like “commander” are not mistakenly altered). Special handling is included for the “new line” command to remove awkward leading spaces on the following line, resulting in clean formatting. To ensure correctness and robustness, comprehensive unit tests were added in transformer.test.ts, covering case insensitivity, spacing variations, and edge cases. Verification was performed by running bun test src/lib/query/isomorphic/transformer.test.ts locally, with successful results confirming basic replacements (e.g., “Hello comma world” → “Hello, world”), case-insensitive behavior (“Period” → “.”), safety checks (“The commander” remains unchanged), and proper newline handling (“Line one new line Line two” → “Line one\nLine two”). This change fully resolves and closes issue #1253 without omitting any requested functionality.