Add AI Dictation to Productivity

[vood]

What changed

• Added AI Dictation to the Productivity section using the required one-line format.
• Linked the product website and kept the description limited to verified iPhone/iPad app-and-keyboard functionality.

Why

AI Dictation is a live iOS Productivity app and was not already present in the list or its open/closed submission history. Its native iOS client source is available under the MIT License.

• Website: https://aidictation.com
• App Store: https://apps.apple.com/app/id6754910103
• Source: https://github.com/writingmate/aidictation

Validation

• Searched the README and all existing pull requests/issues for AI Dictation, aidictation, WhisperMate, and Writingmate; no duplicate found.
• Verified the live Apple listing identifies AI Dictation as a Productivity app for iPhone and iPad.
• Verified the website and App Store URLs resolve successfully.
• Ran git diff --check.

Disclosures

Affiliation: this submission is from the AI Dictation team.

AI assistance: Codex assisted with the catalog audit, wording, validation, and preparation of this pull request.