Folder: `models/practice-pyq/`

this folder is one drawer in the backend filing cabinet.

practice-pyq-import-meta.schema.ts

Path: src/models/practice-pyq/practice-pyq-import-meta.schema.ts

Header from code: practice-pyq-import-meta.schema.ts — embedded PYQ paste fields

NOT a collection — merged into PracticePyqQuestion root for import fidelity.

Path: src/models/practice-pyq/practice-pyq-question.model.ts

Header from code: practice-pyq-question.model.ts — published PYQ MCQ bank

MONGODB: practicepyqquestions | subtopicId → PracticePyqSubtopic

Path: src/models/practice-pyq/practice-pyq-subject.model.ts

Header from code: practice-pyq-subject.model.ts — PYQ taxonomy root (Subject)

MONGODB: practicepyqsubjects | Hierarchy: Subject → Topic → Subtopic → Question

Path: src/models/practice-pyq/practice-pyq-subtopic.model.ts

Header from code: practice-pyq-subtopic.model.ts — PYQ taxonomy level 3 (Subtopic)

MONGODB: practicepyqsubtopics | topicId → PracticePyqTopic; questions hang here

Path: src/models/practice-pyq/practice-pyq-topic.model.ts

Header from code: practice-pyq-topic.model.ts — PYQ taxonomy level 2 (Topic)

MONGODB: practicepyqtopics | subjectId → PracticePyqSubject (unique slug per subject)

Path: src/models/practice-pyq/practice-pyq-user-question-card.model.ts

Header from code: practice-pyq-user-question-card.model.ts — per-user SRS state for one PYQ

MONGODB: practicepyquserquestioncards | Unique (userId, questionId)