fix(rpm): rename neuron package to helexa-neuron

Fedora's official repos ship a package named `neuron` — the NEURON
neural-simulation environment from Yale (see
https://src.fedoraproject.org/rpms/neuron). Having our own `neuron`
in the helexa COPR caused dnf5 to silently no-op `dnf install neuron`
because of the name collision, even with the COPR repo enabled and
keys imported. The only workarounds were full NEVRA (`dnf install
neuron-0.1.12-1.fc43.x86_64`) or a local file install — neither
acceptable for end-users.

Rename the RPM package to `helexa-neuron`. Keep binary (/usr/bin/neuron),
systemd unit (neuron.service), system user (neuron), and config dir
(/etc/neuron) unchanged — those are project-local contexts where the
short name is unambiguous. Follows Fedora subpackage-style naming
except with a vendor prefix rather than a parent-package prefix,
because neuron is an independent package from cortex (installed on
different hosts) and neither depends on the other.

Changes:
- neuron.spec -> helexa-neuron.spec (git rename)
- Name: neuron -> helexa-neuron (with comment explaining why)
- CI: srpm-neuron job now builds helexa-neuron-VERSION.tar.gz with the
  matching top-level dir prefix, publishes to helexa/helexa-neuron COPR
- CI: bump-version job references helexa-neuron.spec
- CLAUDE.md: install instructions updated

Old helexa/neuron COPR project can be deleted after the first
helexa/helexa-neuron build lands.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -139,37 +139,37 @@ jobs:
         run: |
           VERSION="${{ steps.version.outputs.VERSION }}"
           sed -i '/\[workspace\.package\]/,/\[/{ s/^version = ".*"/version = "'"${VERSION}"'"/ }' Cargo.toml
-          sed -i "s/^Version:.*/Version:        ${VERSION}/" neuron.spec
+          sed -i "s/^Version:.*/Version:        ${VERSION}/" helexa-neuron.spec
 
       - name: Generate changelog entry
         uses: https://git.lair.cafe/actions/rpm-changelog@v1
         with:
-          spec: neuron.spec
+          spec: helexa-neuron.spec
           version: ${{ steps.version.outputs.VERSION }}
 
       - name: Generate source tarball
         run: |
           set -ex
           VERSION="${{ steps.version.outputs.VERSION }}"
-          tar czf /tmp/neuron-${VERSION}.tar.gz \
+          tar czf /tmp/helexa-neuron-${VERSION}.tar.gz \
-            --transform "s,^\.,neuron-${VERSION}," \
+            --transform "s,^\.,helexa-neuron-${VERSION}," \
             --exclude='./target' \
             --exclude='./.git' \
             --exclude='*.tar.gz' \
             --exclude='*.src.rpm' \
             .
-          mv /tmp/neuron-${VERSION}.tar.gz .
+          mv /tmp/helexa-neuron-${VERSION}.tar.gz .
 
       - name: Vendor Rust dependencies
         run: |
           VERSION="${{ steps.version.outputs.VERSION }}"
           cargo vendor vendor/
-          tar czf neuron-${VERSION}-vendor.tar.gz vendor/
+          tar czf helexa-neuron-${VERSION}-vendor.tar.gz vendor/
           rm -rf vendor/
 
       - name: Build SRPM
         run: |
-          rpmbuild -bs neuron.spec \
+          rpmbuild -bs helexa-neuron.spec \
             --define "_sourcedir $(pwd)" \
             --define "_srcrpmdir $(pwd)"
 
@@ -209,7 +209,7 @@ jobs:
       - name: Publish to COPR
         uses: https://git.lair.cafe/actions/copr-publish@v1
         with:
-          project: helexa/neuron
+          project: helexa/helexa-neuron
           srpm: "*.src.rpm"
           copr-config: ${{ secrets.COPR_CONFIG }}
 
@@ -231,7 +231,7 @@ jobs:
           VERSION="${{ steps.version.outputs.VERSION }}"
           sed -i '/\[workspace\.package\]/,/\[/{ s/^version = ".*"/version = "'"${VERSION}"'"/ }' Cargo.toml
           sed -i "s/^Version:.*/Version:        ${VERSION}/" cortex.spec
-          sed -i "s/^Version:.*/Version:        ${VERSION}/" neuron.spec
+          sed -i "s/^Version:.*/Version:        ${VERSION}/" helexa-neuron.spec
           cargo check --workspace 2>/dev/null || true
 
       - name: Generate cortex changelog entry
@@ -240,10 +240,10 @@ jobs:
           spec: cortex.spec
           version: ${{ steps.version.outputs.VERSION }}
 
-      - name: Generate neuron changelog entry
+      - name: Generate helexa-neuron changelog entry
         uses: https://git.lair.cafe/actions/rpm-changelog@v1
         with:
-          spec: neuron.spec
+          spec: helexa-neuron.spec
           version: ${{ steps.version.outputs.VERSION }}
 
       - name: Commit and push
@@ -253,7 +253,7 @@ jobs:
           VERSION="${{ steps.version.outputs.VERSION }}"
           git config user.name "Gitea Actions"
           git config user.email "actions@git.lair.cafe"
-          git add Cargo.toml Cargo.lock cortex.spec neuron.spec
+          git add Cargo.toml Cargo.lock cortex.spec helexa-neuron.spec
           if git diff --cached --quiet; then
             echo "Nothing to commit for ${VERSION}"
           else

CLAUDE.md

@@ -596,15 +596,18 @@ Completed. Both packages have RPM specs, systemd units, and example configs.
 CI builds parallel SRPMs on tag push and publishes to separate COPR repos.
 
 - `cortex.spec` → `helexa/cortex` COPR: binary, systemd unit, config files
-- `neuron.spec` → `helexa/neuron` COPR: binary, systemd unit, config
+- `helexa-neuron.spec` → `helexa/helexa-neuron` COPR: binary, systemd unit,
+  config. Package renamed from `neuron` to avoid collision with Fedora's
+  NEURON neural-simulation package (https://src.fedoraproject.org/rpms/neuron);
+  binary, systemd unit, system user, and config dir stay as `neuron`.
 - `data/cortex.service`, `data/neuron.service` — systemd units
 - `cortex.example.toml`, `neuron.example.toml`, `models.example.toml`
 - CI: parallel `srpm-cortex` + `srpm-neuron` jobs, then parallel COPR publish
 
 Install:
 ```sh
-dnf copr enable helexa/cortex && dnf install cortex    # gateway host
+dnf copr enable helexa/cortex && dnf install cortex                    # gateway host
-dnf copr enable helexa/neuron && dnf install neuron    # GPU nodes
+dnf copr enable helexa/helexa-neuron && dnf install helexa-neuron      # GPU nodes
 ```
 
 ### Phase 11: llama.cpp harness stub

helexa-neuron.spec

@@ -1,7 +1,10 @@
-Name:           neuron
+Name:           helexa-neuron
 Version:        0.1.12
 Release:        1%{?dist}
 Summary:        Per-node GPU discovery and harness management daemon for cortex
+# Package name disambiguates from Fedora's existing "neuron" package
+# (NEURON neural simulation environment from Yale). Binary, systemd
+# unit, and system user are still called "neuron" for brevity.
 
 License:        GPL-3.0-or-later
 URL:            https://git.lair.cafe/helexa/cortex