feat: challenge registry-driven platform + XVI/XVII imports + admin toggle + domain rename

- Rename repo/domain: attack-defense-platform / attackdefense.imrnes.team (all refs replaced)
- challenge_registry.json: single source of truth (28 challs across gemastik18/xvi/xvii)
- teams.py: registry-driven CHALLENGES, set_challenge_enabled, sync_challenge_runtime
  (apply enable/disable to live teams: build/up or stop/remove + receiver restart)
- compose_gen.py: render per-team compose from canonical per-challenge templates
  (image reuse, per-team ports 30xxx, flag mounts, passwords)
- gen_canonical_composes.py: canonical docker-compose.yml for all services
- import_new_challenges.py: import XVI/XVII services + EOL base image fixes
  (debian:buster→bookworm, node:14→20, python:3.7-slim→3.11)
- receiver: xvi package (10 checkers) + xvii package (12 generic checkers),
  Challenge base reads PASSWORD_<team_port> from env; gen_receiver_main.py
  generates per-team main.py from registry
- main.py: /api/challenges returns full registry; PATCH /api/challenges/<name>
  toggles enabled + applies to live teams
- index.html: 🏗️ Challenge Manager tab (toggle per challenge, grouped by set)
- SLA bonus now dynamic (all enabled challenges, not hardcoded 6)

services/gleam-drive/src/app/service.gleam

@@ -0,0 +1,109 @@
+import app/config
+import app/crypto
+import app/model
+import app/repository
+import app/util
+import birl
+import birl/duration
+import filepath
+import gleam/result
+import simplifile
+import sqlight
+import wisp
+
+pub fn login(db: sqlight.Connection, user: model.User) -> Result(String, String) {
+  case repository.login(db, user.email, user.password) {
+    True -> Ok(generate_session_token(user.email))
+    False -> Error("Invalid credentials")
+  }
+}
+
+pub fn register(
+  db: sqlight.Connection,
+  user: model.User,
+) -> Result(String, String) {
+  let user_dir = filepath.join(config.upload_dir, user.email)
+  case repository.user_exists(db, user.email) || util.path_exists(user_dir) {
+    True -> Error("User already exists")
+    False -> {
+      result.unwrap(simplifile.create_directory_all(user_dir), Nil)
+      repository.create_user(db, user.email, user.password)
+    }
+  }
+}
+
+pub fn list_uploads(
+  db: sqlight.Connection,
+  session: model.Session,
+) -> List(model.Upload) {
+  repository.list_uploads(db, session.email)
+}
+
+pub fn find_upload(
+  db: sqlight.Connection,
+  session: model.Session,
+  filename: String,
+) -> Result(model.Upload, String) {
+  repository.find_file(db, session.email, filename)
+}
+
+pub fn upload(
+  db: sqlight.Connection,
+  file: wisp.UploadedFile,
+  session: model.Session,
+) -> Result(String, String) {
+  let user_dir = filepath.join(config.upload_dir, session.email)
+  let filepath = filepath.join(user_dir, file.file_name)
+  let filesize = util.get_file_size(file.path)
+  case repository.create_upload(db, session.email, file.file_name, filesize) {
+    Ok(_) -> util.upload_file(file.path, filepath)
+    Error(_) -> Error("Failed to upload file")
+  }
+}
+
+pub fn share(
+  db: sqlight.Connection,
+  recepient: String,
+  filename: String,
+  session: model.Session,
+) -> Result(String, String) {
+  let drive = repository.find_file(db, session.email, filename)
+  let user_dir = filepath.join(config.upload_dir, session.email)
+  let shared_file = filepath.join(user_dir, filename)
+  case drive {
+    Ok(_) -> Ok(generate_shared_token(model.Shared(shared_file, recepient)))
+    Error(_) -> Error("File not found")
+  }
+}
+
+pub fn extract_session_token(token: String) -> model.Session {
+  let key = config.aes_key()
+  case model.session_from_json(crypto.decrypt(key, token)) {
+    Ok(session) -> session
+    Error(_) -> model.Session("", 0)
+  }
+}
+
+pub fn extract_shared_token(token: String) -> Result(model.Shared, String) {
+  let key = config.aes_key()
+  case model.shared_from_json(crypto.decrypt(key, token)) {
+    Ok(shared) -> Ok(shared)
+    Error(_) -> Error("Invalid token")
+  }
+}
+
+pub fn generate_shared_token(data: model.Shared) -> String {
+  let key = config.aes_key()
+  crypto.encrypt(key, model.shared_to_json(data))
+}
+
+fn generate_session_token(email: String) -> String {
+  let key = config.aes_key()
+  crypto.encrypt(
+    key,
+    model.session_to_json(model.Session(
+      email,
+      birl.to_unix(birl.add(birl.now(), duration.minutes(30))),
+    )),
+  )
+}