Kuadrant operator integration (OLMv1 / OCP 5.0)

[Patryk-Stefanski]

Epic: Kuadrant Operator Integration

Integrate mcp-gateway into the kuadrant-operator as an optional managed component. The kuadrant-operator evolves to deploy mcp-gateway via embedded Helm chart rendering, with mcp-gateway as the first component to prove this pattern.

Design doc

PR #1198

Key decisions

• kuadrant-operator becomes the umbrella (no separate umbrella-operator)
• mcp-gateway is the first component to prove the Helm-based deployment pattern
• Controller headless mode (DISABLE_EXTENSION_RECONCILER) removed — controller always runs in full mode under umbrella operator
• Trigger: Kuadrant CR creation (same pattern as Authorino, Limitador, DNS Operator)
• CRD sync via make sync-child-operator-charts in kuadrant-operator

Sub-issues

#	Task	Blocked by
#1227	Add controller headless mode	— (closed, not needed)
#1228	Add default NetworkPolicy templates	—
#1229	Fix Helm chart versioning	—
#1230	Remove OLM dependency declaration	—
#1231	Publish Helm chart to kuadrant.io/helm-charts	#1228, #1229, #1230
#1232	POC: kuadrant-operator manages mcp-gateway	—
#1233	Full integration validation	#1231, #1232
#1234	Document migration guide	#1233
#1235	Document Helm-based deployment guide	#1233
#1284	Remove mcp-gateway OLM bundle from product build	#1233

References

• Architecture RFC 0019
• kuadrant-operator POC branch: olmv1-umbrella-poc-phase1
• kuadrant-operator fixes PR: #2111
• mcp-gateway feature branch PR: #1239
• mcp-gateway design docs PR: #1283
• CONNLINK-1115