Pipelinen parannuksia building blockeilla

zipit/loop_runs/v3_docker/requirements

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+**PROJECT NAME:** TodoSovellus
+
+**GOAL:** To create a simple task management application for individuals to keep track of their daily tasks and manage them efficiently.
+
+**CORE FEATURES:**
+1. Create new todos with title, description, due date, and status.
+2. Read (view) all todos and filter by status (e.g., pending, completed).
+3. Update existing todos to change details like title, description, due date, or status.
+4. Delete todos that are no longer needed.
+5. Mark todos as completed or pending.
+6. View the total number of todos and count by status.
+
+**DATA MODEL:**
+1. **Todo**
+   - id (integer, primary key)
+   - title (string)
+   - description (text)
+   - due_date (date)
+   - status (enum: "pending", "completed")
+
+**API ENDPOINTS:**
+1. **POST /todos** - Create a new todo
+2. **GET /todos** - Retrieve all todos, optionally filter by status
+3. **GET /todos/{id}** - Retrieve a single todo by ID
+4. **PUT /todos/{id}** - Update an existing todo
+5. **DELETE /todos/{id}** - Delete a todo
+
+**CONSTRAINTS:**
+- Must use SQLite as the database.
+- No authentication is required for accessing endpoints.