feat: implement API token management with creation, listing, and revocation features; update environment configuration and enhance error handling

Author: Robert27

backend/.env.example

@@ -1,4 +1,5 @@
 DATABASE_URL=postgres://cle:cle_password@localhost:5422/cle_db
+API_TOKEN_SECRET=change-me-to-a-long-random-string-for-local-dev
 RUST_LOG=info
 SESSION_COOKIE_SECURE=false
 CACHE_TTL_SECONDS=60

…4b7e3a4abf386573e7e1956745cd923ac93.json …998a4ece57e903bd4f578c1ae94a8c2049a.jsonbackend/.sqlx/query-3edb334af65f4c5d472bb430966954b7e3a4abf386573e7e1956745cd923ac93.json renamed to backend/.sqlx/query-0bd9de866430e447e3cf961dc93f6998a4ece57e903bd4f578c1ae94a8c2049a.json backend/.sqlx/query-3edb334af65f4c5d472bb430966954b7e3a4abf386573e7e1956745cd923ac93.json renamed to backend/.sqlx/query-0bd9de866430e447e3cf961dc93f6998a4ece57e903bd4f578c1ae94a8c2049a.json

@@ -24,7 +24,6 @@ utoipa-axum = "0.2.0"
 utoipa-swagger-ui = { version = "9.0.2", features = ["axum", "vendored"] }
 tracing = "0.1.44"
 tracing-subscriber = { version = "0.3.23", features = ["env-filter", "time"] }
-dotenv = "0.15.0"
 argon2 = { version = "0.5", features = ["std"] }
 password-hash = "0.5"
 rand_core = { version = "0.6", features = ["std", "getrandom"] }
@@ -33,5 +32,7 @@ cookie = "0.18"
 password_policy = "0.1"
 lettre = { version = "0.11.20", default-features = false, features = ["builder", "smtp-transport", "tokio1", "tokio1-rustls", "rustls-native-certs", "aws-lc-rs"] }
 base64 = "0.22"
+hmac = "0.12"
+sha2 = "0.10"
 icalendar = "0.17"
 chrono-tz = "0.10"

backend/.sqlx/query-4f45c9504e810f06aa1bce474ce4df44829621ac5457fc2a491a01dd2e155513.json

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS api_tokens;