Add documentation and implementation report

.gitignore

@@ -4,6 +4,7 @@ __pycache__/
 .pytest_cache/
 .coverage
 htmlcov/
+*.egg-info/
 .env
 quiz.db
 *.db

IMPLEMENTATION_REPORT.md

@@ -0,0 +1,67 @@
+# Implementation Report
+
+## Built
+
+Implemented the live in-lecture quiz portal per `SPEC.md`: FastAPI backend, SQLite schema with WAL, signed student and admin cookies, quiz pool validation, modular scoring, student/admin APIs, WebSocket state machine, auto-close, CSV export, vanilla student/admin frontends, example Week 9 question pool, docs, and tests.
+
+File inventory and line counts:
+
+```text
+app/: 1400 lines
+static/: 775 lines
+tests/: 504 lines
+examples/week9_pool.json: 127 lines
+total across app, static, tests, examples: 2806 lines
+```
+
+## Test Results
+
+`pytest -q`:
+
+```text
+31 passed, 33 warnings in 5.43s
+```
+
+`pytest --cov=app`:
+
+```text
+31 passed, 33 warnings in 5.48s
+TOTAL 854 statements, 67 missed, 92.15% coverage
+Required test coverage of 80.0% reached.
+```
+
+Smoke test:
+
+```text
+uvicorn app.main:app started successfully on 127.0.0.1:8001
+GET /healthz returned {"ok":true,"version":"0.1.0","sessions_active":0,"ws_clients":0}
+```
+
+## Run Locally
+
+```bash
+python3 -m venv .venv
+. .venv/bin/activate
+pip install -e '.[dev]'
+cp .env.example .env
+uvicorn app.main:app --host 127.0.0.1 --port 8001 --reload
+```
+
+## Deviations and Notes
+
+- Server-side QR SVG data URLs are used instead of a client-side QR library.
+- `live_histogram` is pushed on every accepted submission, not throttled.
+- Broadcast sends are queued so slow WebSocket clients do not block state changes.
+- `static/observer.html` is a placeholder because the observer page is optional.
+- FastAPI emits a non-fatal `on_event` deprecation warning with the installed package version.
+
+## Open Issues
+
+No known functional blockers. The admin UI is intentionally plain and should be reviewed with the instructor workflow in mind before classroom use.
+
+## Review Carefully
+
+- The late-join behavior and missed-submission rows.
+- The session control flow from `lobby` through `finished`.
+- CSV shape against the exact spreadsheet format wanted for class records.
+- The generated example questions, because they are plausible placeholders.

NOTES.md

@@ -1,3 +1,15 @@
 # Notes
 
-Implementation notes will be filled in as the application lands.
+## Implementation Choices
+
+- QR codes are generated server-side with the Python `qrcode` package and returned as an SVG data URL from session creation.
+- `live_histogram` is pushed on every accepted submission. There is no throttling in v1 because the acceptance load is small and this keeps behavior simple.
+- WebSocket broadcast sends are queued as background tasks. This prevents one slow classroom device from blocking state transitions or auto-close.
+- The optional observer page exists as a placeholder only. The spec explicitly marks it optional.
+- Tests use one FastAPI `TestClient` portal for multi-student WebSocket simulation. Each socket is opened after joining as that student, and the stored socket identity remains stable after the cookie is overwritten for the next simulated student.
+- Python 3.14.4 was used locally. The project requires Python 3.11 or newer.
+
+## Deviations
+
+- The admin frontend includes a compact one-question sample in the Add Pool modal for convenience. The full 10-question Week 9 pool is in `examples/week9_pool.json`.
+- FastAPI emits a deprecation warning for `on_event` under the installed version. Startup works correctly, and the warning is not user-facing.

README.md

@@ -1,3 +1,45 @@
 # Live In-Lecture Quiz Portal
 
-Development notes will be filled in as the implementation lands.
+FastAPI, SQLite, WebSocket, and vanilla frontend implementation for a live classroom quiz.
+
+## Install
+
+```bash
+cd /home/ameer/RD/Projects/Apps/quiz
+python3 -m venv .venv
+. .venv/bin/activate
+pip install -e '.[dev]'
+cp .env.example .env
+```
+
+Edit `.env` and set real values for `QUIZ_SECRET_KEY` and `QUIZ_ADMIN_PASSWORD`.
+
+## Run
+
+```bash
+. .venv/bin/activate
+uvicorn app.main:app --host 127.0.0.1 --port 8001 --reload
+```
+
+Open `http://127.0.0.1:8001/admin/`, log in, create a quiz pool, then create a session. Use the displayed join URL in another browser or private window for the student view.
+
+## Test
+
+```bash
+. .venv/bin/activate
+pytest -q
+pytest --cov=app
+```
+
+The load simulation test creates 50 student WebSocket clients and runs a 5-question quiz.
+
+## Manual Smoke Test
+
+```bash
+export QUIZ_DB_PATH=/tmp/quiz-smoke.db QUIZ_SECRET_KEY=smoke-secret QUIZ_ADMIN_PASSWORD=smoke-pass QUIZ_PUBLIC_URL=http://127.0.0.1:8001
+. .venv/bin/activate
+uvicorn app.main:app --host 127.0.0.1 --port 8001
+curl http://127.0.0.1:8001/healthz
+```
+
+Expected health response starts with `{"ok":true`.