Same fault. Different response. Not all network failures carry the same business risk. A performance degradation in a revenue-dense cell represents a materially different operational priority than one in a low-traffic zone. Yet today's autonomous networks have no mechanism to express or act on that difference. Isolating contributing factors across RAN, Core, and Transport remains a manual and siloed process. Every fault enters the same resolution queue regardless of business impact. Business-Aware GNN-Healing Networks changes this. The Catalyst introduces a three-layer closed-loop architecture: Business Intent Layer Sequences remediation based on infrastructure business criticality and revenue exposure. Graph Intelligence Layer A Graph Neural Network powered by Google Cloud's SpannerDB Temporal Digital Twin traverses cross-domain topology to identify remediation branches from a single service-layer trigger. No alarm is required. Execution Layer Standards-based service-layer orchestration. Healing intent travels in TMF921 and decomposes through TMF641 service orders into per-domain actions across RAN, Core, and Transport. The key innovation is the first Business Intent Extension Model (BIEM) contributed to the TM Forum Intent Ontology (TIO). It gives operators a standards-based vocabulary to declare which remediation branch executes first when recovery resources are constrained, decoupling business priority from network implementation. The result: same fault, different response. Level 4 autonomy across RAN, Core, and Transport, on a Google Cloud digital twin, with the business layer exploring the Level 5 boundary through declarative, intent-driven prioritization. The Catalyst targets: * More than 95% silent-degradation lead-time compression: detection in sub-minute windows instead of hours (Phase 1 target) * More than 80% cross-domain triage labour reduction per event, USD 1.08M per tier-1 operator per year (Phase 1 target) * +$2.475M customer market share revenue uplift per year, protecting revenue at risk in critical coverage zones (champion-validated)