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architecture/2026/15-hosting-mvp-runtime-wiring.md

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+# Phase 4 Implementation: Hosting MVP Runtime Wiring
+
+## Delivered
+- Site/domain/SSL controllers now delegate to a single workflow service.
+- Hosting command envelopes are generated through `HostingCommandFactory`.
+- Webserver profile normalization supports:
+  - `nginx`
+  - `apache` (`httpd` alias)
+  - `openlitespeed` (`ols` alias)
+- Command orchestrator now accepts:
+  - `DOMAIN_ADD`
+  - `DOMAIN_REMOVE`
+  - `WEBSERVER_RELOAD`
+
+## Runtime flow
+1. API receives request for site/domain/ssl mutation.
+2. `SiteWorkflowService` validates and maps request to typed command envelope.
+3. `CommandOrchestrator` assigns job metadata and enqueues dispatch payload.
+4. Execution plane consumes command and performs adapter-specific operation.
+
+## Notes
+- This phase intentionally keeps persistence minimal while making runtime wiring explicit.
+- Next step is adding provider-specific validation templates and dry-run checks before dispatch.