Simplify and clean up provisioning scripts

- lib/distro.sh: add DISTRO_CODENAME from VERSION_CODENAME; remove
  unused REPO_ADD_RPM variable; export DISTRO_CODENAME

- stages/01-repos.sh: replace repeated '. /etc/os-release' subshell
  calls with $DISTRO_CODENAME in Docker and Tailscale repo lines

- stages/00-envcheck.sh: combine four mkdir -p calls into one

- stages/02-packages.sh: remove identical if/else branches in fd
  symlink block; both branches were the same command

- stages/03-toolchains.sh: set NVM_DIR once before the if/else instead
  of twice; remove dead commented-out duplicate curl line

- stages/04-shell.sh: capture $(date +%Y%m%d) into _bak_date once per
  backup and reuse in cp and warn to avoid redundant forks

- stages/06-scripts.sh: split 'export VAR=$(cmd)' into assignment +
  export to correctly propagate errors under set -euo pipefail

- stages/07-uv-projects.sh: remove unused has_package_json field (always
  false, never read); fix stage completion message 06 -> 07

- stages/08-systemd.sh: remove mempi-sync.timer (deploy, enable, header
  comment); deploy mempi-sync.service only

- stages/09-desktop.sh: remove duplicate mkdir -p in COSMIC section;
  remove unused repo_url parameter from install_nerd_font()

- stages/12-other-apps.sh: replace manual distro branch for Nextcloud
  with pkg_install_mapped

- config/scripts/bw-load-ssh.sh: split 'export BW_SESSION=$(cat ...)'
  into assignment + export

- config/systemd/mempi-sync.timer: delete file

stages/07-uv-projects.sh

@@ -19,22 +19,21 @@
 export PATH="$HOME/.local/bin:$PATH"
 
 # ---- Define tool repos ----
-# Format: "repo_name:github_org:has_pyproject:has_package_json"
-# repo_name = directory name under ~/Development/
-# github_org = GitHub org (julianprester or re3-work)
+# Format: "repo_name:github_org:has_pyproject"
+# repo_name     = directory name under ~/Development/
+# github_org    = GitHub org (julianprester or re3-work)
 # has_pyproject = true if it has pyproject.toml and should be uv-installed
-# has_package_json = true if it has package.json and should be npm-linked
 
 TOOLS=(
-  "porridge:julianprester:true:false"      # Zoom meeting transcriber daemon
-  "deepis:julianprester:true:false"        # Literature discovery CLI
-  "pi-persist:julianprester:true:false"    # Memory persistence (mempi, pi-overview)
-  "panac:julianprester:true:false"         # Pandoc wrapper CLI
-  "gromd:julianprester:true:false"         # Gromd tool
-  "kannwas:julianprester:true:false"       # Kannwas tool
-  "tb-api:julianprester:false:false"       # Thunderbird REST API (not a Python/npm pkg — Firefox addon)
-  "hotkeys:julianprester:false:false"      # Shell scripts for Wayland hotkeys (no install needed)
-  "ocpa-repo:julianprester:true:false"          # OpenCode pi agent Python package
+  "porridge:julianprester:true"      # Zoom meeting transcriber daemon
+  "deepis:julianprester:true"        # Literature discovery CLI
+  "pi-persist:julianprester:true"    # Memory persistence (mempi, pi-overview)
+  "panac:julianprester:true"         # Pandoc wrapper CLI
+  "gromd:julianprester:true"         # Gromd tool
+  "kannwas:julianprester:true"       # Kannwas tool
+  "tb-api:julianprester:false"       # Thunderbird REST API (not a Python pkg — Firefox addon)
+  "hotkeys:julianprester:false"      # Shell scripts for Wayland hotkeys (no install needed)
+  "ocpa-repo:julianprester:true"     # OpenCode pi agent Python package
 )
 
 # ===========================================================================
@@ -44,7 +43,7 @@ mkdir -p "$HOME/Development"
 
 # ---- Clone and install each tool ----
 for tool_entry in "${TOOLS[@]}"; do
-  IFS=':' read -r name org has_pyproject has_package_json <<< "$tool_entry"
+  IFS=':' read -r name org has_pyproject <<< "$tool_entry"
   target_dir="$HOME/Development/$name"
 
   if [ -d "$target_dir" ]; then
@@ -82,4 +81,4 @@ echo ""
 info "Verifying uv tool installations..."
 uv tool list 2>/dev/null || warn "No uv tools installed."
 
-ok "Stage 06 complete: uv tools installed."
+ok "Stage 07 complete: uv tools installed."