fix: update bb download url

Author: cedoor

.github/workflows/ci.yml

@@ -796,7 +796,7 @@ jobs:
       - name: Install Barretenberg (bb)
         if: steps.cache-bb.outputs.cache-hit != 'true'
         run: |
-          curl -fsSL "https://github.com/gnosisguild/enclave/releases/download/v0.1.15/barretenberg-amd64-linux-${{ env.BB_VERSION }}.tar.gz" -o bb.tar.gz
+          curl -fsSL "https://github.com/gnosisguild/enclave/releases/download/v0.1.15/barretenberg-amd64-linux-v${{ env.BB_VERSION }}.tar.gz" -o bb.tar.gz
           mkdir -p bb_extract && tar -xzf bb.tar.gz -C bb_extract
           BB_BIN=$(find bb_extract -name bb -type f | head -n 1)
           sudo mv "$BB_BIN" /usr/local/bin/bb
@@ -878,7 +878,7 @@ jobs:
       - name: Install Barretenberg (bb)
         if: steps.cache-bb.outputs.cache-hit != 'true'
         run: |
-          curl -fsSL "https://github.com/gnosisguild/enclave/releases/download/v0.1.15/barretenberg-amd64-linux-${{ env.BB_VERSION }}.tar.gz" -o bb.tar.gz
+          curl -fsSL "https://github.com/gnosisguild/enclave/releases/download/v0.1.15/barretenberg-amd64-linux-v${{ env.BB_VERSION }}.tar.gz" -o bb.tar.gz
           mkdir -p bb_extract && tar -xzf bb.tar.gz -C bb_extract
           BB_BIN=$(find bb_extract -name bb -type f | head -n 1)
           sudo mv "$BB_BIN" /usr/local/bin/bb

crates/zk-prover/versions.json

@@ -1,7 +1,7 @@
 {
   "required_bb_version": "3.0.0-nightly.20260102",
   "required_circuits_version": "0.1.15",
-  "bb_download_url": "https://github.com/gnosisguild/enclave/releases/download/v0.1.15/barretenberg-{arch}-{os}-{version}.tar.gz",
+  "bb_download_url": "https://github.com/gnosisguild/enclave/releases/download/v0.1.15/barretenberg-{arch}-{os}-v{version}.tar.gz",
   "bb_checksums": {
     "amd64-linux": "4847ae82a1d25f9489057da2c33d1abdee3ba457e8219028a2c2336f850f8cd7",
     "amd64-darwin": "9137b49be56bfea5b62203b7ae4cb67c9ecc12fe1692a89badf2cf4b57323fdc",