refactor(quote): move TCB level logic to a dedicated module

- Extracted `TcbLevel` functionality from `sgx` module to `quote::tcblevel`.
- Updated all references to import `TcbLevel` and related utilities from `quote::tcblevel`.
- Updated copyright headers to reflect the new year range.

Signed-off-by: Harald Hoyer <harald@matterlabs.dev>

crates/teepot/src/pki/mod.rs

@@ -2,9 +2,7 @@
 // Copyright (c) 2023-2025 Matter Labs
 
 //! Create a private key and a signed and self-signed certificates
-
 use crate::quote::{error::QuoteContext, get_quote};
-pub use crate::sgx::{parse_tcb_levels, sgx_ql_qv_result_t, EnumSet, TcbLevel};
 use anyhow::{Context, Result};
 use const_oid::{
     db::rfc5280::{ID_KP_CLIENT_AUTH, ID_KP_SERVER_AUTH},

crates/teepot/src/quote/attestation.rs

@@ -3,11 +3,11 @@
 
 //! Common attestation API for all TEEs
 
-use crate::{
-    quote::{
-        error::QuoteContext, get_quote, verify_quote_with_collateral, QuoteVerificationResult,
-    },
-    sgx::{Collateral, EnumSet, TcbLevel},
+use crate::quote::{
+    error::QuoteContext,
+    get_quote,
+    tcblevel::{EnumSet, TcbLevel},
+    verify_quote_with_collateral, Collateral, QuoteVerificationResult,
 };
 use anyhow::{bail, Context, Result};
 use intel_tee_quote_verification_rs::tee_qv_get_collateral;

crates/teepot/src/quote/mod.rs

@@ -8,6 +8,7 @@
 
 pub mod attestation;
 pub mod error;
+pub mod tcblevel;
 
 use crate::{
     quote::error::{QuoteContext as _, QuoteError},

crates/teepot/src/quote/tcblevel.rs

@@ -1,12 +1,15 @@
 // SPDX-License-Identifier: Apache-2.0
-// Copyright (c) 2023-2024 Matter Labs
+// Copyright (c) 2023-2025 Matter Labs
 
 //! Intel SGX Enclave TCB level wrapper
 
 use enumset::EnumSetType;
 use intel_tee_quote_verification_rs::sgx_ql_qv_result_t;
-use std::fmt::{Display, Formatter};
-use std::str::FromStr;
+use serde::{Deserialize, Serialize};
+use std::{
+    fmt::{Display, Formatter},
+    str::FromStr,
+};
 
 pub use enumset::EnumSet;
 

crates/teepot/src/sgx/mod.rs

@@ -1,12 +1,11 @@
 // SPDX-License-Identifier: Apache-2.0
-// Copyright (c) 2023-2024 Matter Labs
+// Copyright (c) 2023-2025 Matter Labs
 
 // Copyright (c) The Enarx Project Developers https://github.com/enarx/sgx
 
 //! Intel SGX Enclave report structures.
 
 pub mod sign;
-pub mod tcblevel;
 
 use crate::quote::error::QuoteContext;
 pub use crate::quote::error::QuoteError;
@@ -17,7 +16,6 @@ use std::{
     io::{Read, Write},
     mem,
 };
-pub use tcblevel::{parse_tcb_levels, EnumSet, TcbLevel};
 
 /// Structure of a quote
 #[derive(Copy, Clone, Debug, AnyBitPattern)]

crates/teepot/src/tdx/mod.rs

@@ -1,11 +1,10 @@
 // SPDX-License-Identifier: Apache-2.0
-// Copyright (c) 2023-2024 Matter Labs
+// Copyright (c) 2023-2025 Matter Labs
 
 //! Intel TDX helper functions.
 
 pub mod rtmr;
 
-pub use crate::sgx::tcblevel::{parse_tcb_levels, EnumSet, TcbLevel};
 use crate::sgx::QuoteError;
 pub use intel_tee_quote_verification_rs::Collateral;
 use tdx_attest_rs::{tdx_att_get_quote, tdx_attest_error_t, tdx_report_data_t};