style: remove emoji from project files and CLI output #44

Parent

Part of #40.

What to build

Remove emoji characters from repository-maintained project content and command-line presentation. Replace decorative markers with clear words or plain text while preserving each message's meaning and the program's behavior.

Acceptance criteria

• Tracked project files contain no emoji characters, including documentation, README content, task descriptions, scripts, application output, tests, and generated presentation assets.
• Task descriptions and command-line prompts and messages use clear text without emoji markers.
• Tests assert the revised readable output and continue to cover the same behavior.
• No download, retry, persistence, or other application behavior changes as part of this cleanup.
• A full tracked-file scan reports no emoji characters after the cleanup.
• Follow-on brand, README, site, and diagram work introduces no emoji characters.

Blocked by

None. This ticket can start immediately.