chore: rework references for repo rename deploy-felhom-compose -> felhom-controller

Repo renamed on Gitea (admin/deploy-felhom-compose -> admin/felhom-controller).
Updates clone URLs, clone dirs, the customer bootstrap URL, build.sh, BUILDING.md,
README.md, CLAUDE.md, CONTEXT.md and TASK.md to the new name. No functional change:
Go module path and Docker image path (both already 'felhom-controller') untouched.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

scripts/felhom-wipe.sh

@@ -484,7 +484,7 @@ do_nuclear_wipe() {
     echo ""
     info "Nuclear wipe complete."
     echo -e "${CYAN}To redeploy, run:${NC}"
-    echo "  curl -fsSL https://gitea.dooplex.hu/admin/deploy-felhom-compose/raw/branch/main/scripts/docker-setup.sh | bash"
+    echo "  curl -fsSL https://gitea.dooplex.hu/admin/felhom-controller/raw/branch/main/scripts/docker-setup.sh | bash"
 }
 
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