Adds a unique constraint to the database schema for time entries, preventing duplicates for the same month and collaborator. Also updates the API to check for existing entries before creation and unifies the collaborator name used in the dialog.
Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 55837015-10e9-4be9-b857-7f5e6be73772
Replit-Commit-Checkpoint-Type: full_checkpoint
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Replit-Helium-Checkpoint-Created: true
Implements a new quick entry feature with a dedicated API route and frontend component, allowing users to rapidly log time against projects by selecting a project, date, and predefined hour increments, with automatic creation of timesheets and lines if they don't exist.
Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 55837015-10e9-4be9-b857-7f5e6be73772
Replit-Commit-Checkpoint-Type: full_checkpoint
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Replit-Helium-Checkpoint-Created: true