chore: update license header and bundle copyright in the debian package

Signed-off-by: usamoi <usamoi@outlook.com>

Author: usamoi

.github/workflows/check.yml

@@ -58,7 +58,7 @@ jobs:
           regarding the licenses, please contact us at:
           vectorchord-inquiry@tensorchord.ai
 
-          Copyright (c) 2025 TensorChord Inc.
+          Copyright (c) 2025-2026 TensorChord Inc.
           EOF
           )
           COUNT=$(echo "$HEADER" | wc -l)

.github/workflows/release.yml

@@ -98,6 +98,22 @@ jobs:
           VERSION: ${{ matrix.version }}
         run: |
           make DESTDIR="~/debian" install
+          mkdir -p ~/debian/usr/share/doc/postgresql-${VERSION}-vchord/
+          echo "Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+          Upstream-Name: VectorChord
+          Source: https://github.com/tensorchord/VectorChord
+
+          Files: *
+          Copyright: Copyright (c) 2025-2026 TensorChord Inc.
+          License: AGPL-3.0-only OR Elastic-2.0
+
+          License: AGPL-3.0-only
+           $(cat ./licenses/LICENSE.AGPLv3 | sed 's/^$/./' | sed 's/^/ /')
+
+          License: Elastic-2.0
+            $(cat ./licenses/LICENSE.ELv2 | sed 's/^$/./' | sed 's/^/ /')
+          " \
+          >> ~/debian/usr/share/doc/postgresql-${VERSION}-vchord/copyright
           ARCH=$(uname -m)
           PLATFORM=$(dpkg --print-architecture)
           mkdir -p ~/debian/DEBIAN
@@ -108,9 +124,11 @@ jobs:
           Priority: optional
           Architecture: ${PLATFORM}
           Maintainer: Tensorchord <support@tensorchord.ai>
-          Description: Vector database plugin for Postgres, written in Rust, specifically designed for LLM
-          Homepage: https://vectorchord.ai/
-          License: AGPL-3.0-only OR Elastic-2.0" \
+          Description: Scalable, fast, and disk-friendly vector search in Postgres
+           VectorChord is a PostgreSQL extension designed for scalable,
+           high-performance, and disk-efficient vector similarity search. It
+           supports L2 distance, inner product, cosine distance and maxsim.
+          Homepage: https://vectorchord.ai/ \
           > ~/debian/DEBIAN/control
           (cd ~/debian && find usr -type f -print0 | xargs -0 md5sum) > ~/debian/DEBIAN/md5sums
           dpkg-deb --root-owner-group -Zxz --build ~/debian ~/postgresql-${VERSION}-vchord_${SEMVER}-1_${PLATFORM}.deb

build.rs

@@ -10,7 +10,7 @@
 // regarding the licenses, please contact us at:
 // vectorchord-inquiry@tensorchord.ai
 //
-// Copyright (c) 2025 TensorChord Inc.
+// Copyright (c) 2025-2026 TensorChord Inc.
 
 use std::collections::HashMap;
 use std::env::{var, var_os};

crates/always_equal/src/lib.rs

@@ -10,7 +10,7 @@
 // regarding the licenses, please contact us at:
 // vectorchord-inquiry@tensorchord.ai
 //
-// Copyright (c) 2025 TensorChord Inc.
+// Copyright (c) 2025-2026 TensorChord Inc.
 
 use std::cmp::Ordering;
 use std::hash::Hash;

crates/distance/src/lib.rs

@@ -10,7 +10,7 @@
 // regarding the licenses, please contact us at:
 // vectorchord-inquiry@tensorchord.ai
 //
-// Copyright (c) 2025 TensorChord Inc.
+// Copyright (c) 2025-2026 TensorChord Inc.
 
 use zerocopy::{FromBytes, Immutable, IntoBytes, KnownLayout};
 

crates/feistel/src/lib.rs

@@ -10,7 +10,7 @@
 // regarding the licenses, please contact us at:
 // vectorchord-inquiry@tensorchord.ai
 //
-// Copyright (c) 2025 TensorChord Inc.
+// Copyright (c) 2025-2026 TensorChord Inc.
 
 pub fn feistel<I>(width: u32, x: I, round: u32, secret: impl Fn(u32, I) -> I) -> I
 where

crates/index/src/accessor.rs

@@ -10,7 +10,7 @@
 // regarding the licenses, please contact us at:
 // vectorchord-inquiry@tensorchord.ai
 //
-// Copyright (c) 2025 TensorChord Inc.
+// Copyright (c) 2025-2026 TensorChord Inc.
 
 use distance::Distance;
 use rabitq::byte::CodeMetadata;

crates/index/src/bump.rs

@@ -10,7 +10,7 @@
 // regarding the licenses, please contact us at:
 // vectorchord-inquiry@tensorchord.ai
 //
-// Copyright (c) 2025 TensorChord Inc.
+// Copyright (c) 2025-2026 TensorChord Inc.
 
 pub trait Bump: 'static {
     #[allow(clippy::mut_from_ref)]

crates/index/src/fetch.rs

@@ -10,7 +10,7 @@
 // regarding the licenses, please contact us at:
 // vectorchord-inquiry@tensorchord.ai
 //
-// Copyright (c) 2025 TensorChord Inc.
+// Copyright (c) 2025-2026 TensorChord Inc.
 
 use crate::packed::PackedRefMut;
 use always_equal::AlwaysEqual;

crates/index/src/lib.rs

@@ -10,7 +10,7 @@
 // regarding the licenses, please contact us at:
 // vectorchord-inquiry@tensorchord.ai
 //
-// Copyright (c) 2025 TensorChord Inc.
+// Copyright (c) 2025-2026 TensorChord Inc.
 
 // pub mod accessor;
 pub mod bump;