Fixed issues with assignment progress tracking + added subject progress tracking

notes/work-report-2026-04-22-progess-bars.md

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+# Progress Tracking (Assignments & Subjects)
+
+## What was done
+- Implemented progress tracking for both assignments and subjects
+- Used `Task.isCompleted` as the source of truth
+- Synced `Assignment.isCompleted` based on task completion
+
+## Logic implemented
+- Created `CheckAssignmentCompletion(aId)`
+- Assignment is marked completed only if all its tasks are completed
+- Assignment remains incomplete if:
+  - Any task is incomplete
+  - No tasks exist
+
+## Data handling
+- Fetched assignments from Supabase
+- Fetched all related tasks using assignment IDs
+- Grouped tasks by `aId` into `tasksByAssignment`
+- Used grouped data to calculate progress efficiently
+
+## Progress calculation
+- Assignment progress:
+  - completed tasks / total tasks
+- Subject progress:
+  - completed tasks across all assignments / total tasks
+
+## UI work
+- Added progress bars to:
+  - Assignment cards
+  - Subject views
+- Used basic inline styling for progress bars
+- Fixed layout issues caused by incorrect placement inside `flex-row`
+- Moved progress bar into content column to prevent UI breaking
+
+## Result
+- Progress updates dynamically based on task completion
+- Assignment completion stays in sync with tasks
+- UI correctly displays both assignment and subject progress