refactor: Bring project into REUSE compliance

Author: shymega

.github/dependabot.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 The Neeml Developers
+#
+# SPDX-License-Identifier: Apache-2.0
+
 version: 2
 updates:
   - package-ecosystem: "cargo"

.github/workflows/dependency-review.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 The Neeml Developers
+#
+# SPDX-License-Identifier: Apache-2.0
+
 name: "Dependency Review"
 on: [pull_request]
 

.github/workflows/verify-pr-commit.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 The Neeml Developers
+#
+# SPDX-License-Identifier: Apache-2.0
+
 name: "Conventional Commits Verification Workflow"
 
 on:

.github/workflows/verify-reuse-compliance.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 The Neeml Developers
+#
+# SPDX-License-Identifier: Apache-2.0
+
 name: "REUSE Compliance workflow"
 
 on:

Cargo.lock

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2024 The Exchangers MailDevelopers
+# SPDX-FileCopyrightText: 2025 The Neeml Developers
 #
 # SPDX-License-Identifier: Apache-2.0
 

Cargo.toml

@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2025 The Neeml Developers
+//
+// SPDX-License-Identifier: Apache-2.0
+
 pub fn add(left: usize, right: usize) -> usize {
     left + right
 }

src/lib.rs

@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2025 The Neeml Developers
+//
+// SPDX-License-Identifier: Apache-2.0
+
 fn main() {
     println!("Hello, world!");
 }