Port to Django 5.2 (#635)

* Port to Django 5.2

* Pin pluggy to 1.2.0

Any newer and the mystery importlib metadata error appears. Weird! >_>

* Update for premailer changed default

* Update view logic for is_ajax being changed to a template context processor

* Port a few more tests to pytest proper

Having two distinct test flavours is giving me a headache

* Version 1 dockerfile

Makes a VERY big image, I suspect we can optimise this a lot...

* Optimise dockerfile a little lot a bit

* fix(users): change logout link to POST request

* fix(tests): fix some syntax errors in test code

still got lots of failed tests :(

* fix: replace deprecated Django APIs

* ci: update Dockerfile

* ci: update Dockerfile

* fix(dependencies+tests): update EoL/vulnerable dependencies and improve test stability

* Upgrade Python from 3.10 to 3.12
* Update frontend dependencies, replace node-sass with sass

* chore(logging): ignore dangling obj reference warning from pypdf

* ci: update compose.yml for prod deployment

- Add Nginx as a reverse proxy
- Add cert-selfsign.sh for generating self-signed certificates
- Add certbot-issue.sh for Let's Encrypt certificate issuance and renewal
- Add cron-install.sh and cron-uninstall.sh for system cron management
- Add .env.example as an environment variable template

* style: reformat code

* ci: add more sleep trying to pass tests

* ci: ignore browser-based tests during ci testing

* fix: create home for the new user during Dockerfile building

* chore: remove heroku conf file

* fix: RIGS not franken anymore

* fix: restore is_ajax as a boolean and split out the context processor

* test: remove Selenium interaction tests and their CI workarounds

* fix: harden production settings (CSRF origins, env casts, ADMINS) and drop dead debug toolbar code

* deploy: serve static files from nginx, pin PGDATA, and make cert scripts loud on failure

* build: switch .dockerignore to an allowlist

* build: drop unused dependencies, soft-pin the rest and target Python 3.14

* build: move image to Python 3.14 / Node 24 and force DEBUG off

* ci: add dependabot config for uv, npm, docker and actions

* build: narrow Sass deprecation silencing to @import and require Node 24

* build: provide placeholder env for collectstatic now that DEBUG is off in the image

* deploy: add plain-HTTP nginx config for local development and use it in compose

* deploy: remove self-signed cert script

* build: make the image multi-arch with official node and python base images

* ci: lint and test on PRs, build the image on PRs and push it to GHCR on master

* docs: add local running and sample data instructions

* fix: report a form error instead of crashing when big power has no Power MIC

* fix: upgrade pypdf and urllib3 to patched releases

* fix: apply non-breaking npm audit fixes

* fix: strip whitespace in ALLOWED_HOSTS and drop misleading HSTS preload

* deploy: add a pyrigs healthcheck and make nginx wait for it

* build: pin the uv image version

* fix: correct the check-in person picker condition and use BeautifulSoup's string argument

* refactor: replace unique_together with UniqueConstraint

* build: replace pycodestyle with ruff and fix what it found

Removes unused imports and variables, and fixes a few real problems it
surfaced:
- EventCheckIn.active() referenced an undefined name and raised NameError;
  it now returns whether the check-in has no end time
- RIGS.admin defined EventChecklistAdmin twice; the second is now
  PowerTestRecordAdmin
- RIGS/tests/conftest.py used date/timedelta without importing them
- the signal-registering imports in apps.py are kept with noqa

pycodestyle config in setup.cfg is dropped.

* style: format the codebase with ruff

* style: normalise line endings, trailing whitespace and end-of-file newlines

* ci: run ruff and file hygiene through prek, and document it

---------

Co-authored-by: Hang <me@hangxu.me>
Co-authored-by: Joe Banks <joe@jb3.dev>

package.json

@@ -5,7 +5,7 @@
   "author": "Tom Price",
   "license": "Custom",
   "engines": {
-    "node": "22.x"
+    "node": "24.x"
   },
   "dependencies": {
     "@forevolve/bootstrap-dark": "^2.1.0",
@@ -17,22 +17,22 @@
     "bootstrap-select": "^1.13.18",
     "clipboard": "^2.0.8",
     "cssnano": "^5.0.13",
-    "easymde": "^2.16.1",
+    "easymde": "^2.21.0",
     "fullcalendar": "^5.10.1",
     "gulp-concat": "^2.6.1",
     "gulp-flatten": "^0.4.0",
     "gulp-if": "^3.0.0",
     "gulp-postcss": "^9.0.1",
-    "gulp-sass": "^5.0.0",
+    "gulp-sass": "^6.0.1",
     "gulp-sourcemaps": "^3.0.0",
     "gulp-uglify": "^3.0.2",
     "html5sortable": "^0.13.3",
     "jquery": "^3.6.0",
-    "konami": "^1.6.3",
+    "konami": "^1.7.0",
     "moment": "^2.29.4",
-    "node-sass": "^9.0.0",
     "popper.js": "^1.16.1",
-    "postcss": "^8.4.31",
+    "postcss": "^8.5.26",
+    "sass": "^1.103.1",
     "uglify-js": "^3.14.5"
   },
   "devDependencies": {
@@ -43,5 +43,9 @@
     "gulp": "gulp",
     "build": "node node_modules/gulp/bin/gulp build",
     "heroku-cleanup": "rm -rf node_modules/ pipeline/source_assets gulpfile.js"
+  },
+  "overrides": {
+    "postcss": "^8.5.26",
+    "immutable": "^4.3.9"
   }
 }