[TOTP] Slice 2: Credential Entry Form and Secret Validation

[parthashirolkar]

Parent

#65

What to build

Update the entry add/edit forms to support inputting the TOTP secret, including validation of Base32 secrets and automatic extraction of secrets from otpauth:// URIs.

Acceptance criteria

• Update frontend Zod schemas in api/types.ts to include totp_secret.
• Add a "TOTP Secret / URI" input field in AddCredential and EditCredential forms.
• If an otpauth:// URI is pasted, parse it to extract the secret key, and pre-fill Title and Username if they are empty.
• Validate base32 formatting on the backend during entry creation/updates and display clear validation errors to the user.
• Write tests verifying form validation and URI parsing behavior.

Blocked by

• [TOTP] Slice 1: Rust Backend Schema & Token Generation API #66