Remove optimizer implementation files and code

- Remove all optimizer package files (pkg/optimizer/, pkg/vmcp/optimizer/)
- Remove optimizer integration code from commands.go
- Revert OptimizerConfig to simpler version from main
- Keep enabler improvements: tracing, health checks, test fixes

Author: nigel brown

BRANCH_SPLIT_SUMMARY.md

@@ -0,0 +1,82 @@
+# Branch Split Summary
+
+## Branches Created
+- `optimizer-enablers`: Infrastructure improvements and bugfixes (no optimizer code)
+- `optimizer-implementation`: Full optimizer implementation (includes all changes)
+
+## Files Removed from optimizer-enablers Branch
+✅ Already removed:
+- `cmd/thv-operator/pkg/optimizer/` (entire directory)
+- `pkg/vmcp/optimizer/` (entire directory)
+- `pkg/vmcp/server/adapter/optimizer_adapter.go`
+- `pkg/vmcp/server/adapter/optimizer_adapter_test.go`
+- `pkg/vmcp/server/optimizer_test.go`
+- `examples/vmcp-config-optimizer.yaml`
+- `test/e2e/thv-operator/virtualmcp/virtualmcp_optimizer_test.go`
+
+## Files That Need Manual Cleanup in optimizer-enablers Branch
+
+### 1. `pkg/vmcp/config/config.go`
+- Revert `OptimizerConfig` struct to simpler version from main
+- Keep the `Optimizer *OptimizerConfig` field in `Config` struct (exists in main)
+
+### 2. `pkg/vmcp/server/server.go`
+- Remove optimizer initialization code
+- Remove optimizer-related imports
+- Keep other improvements (tracing, health checks, etc.)
+
+### 3. `cmd/vmcp/app/commands.go`
+- Remove optimizer configuration parsing
+- Remove optimizer-related imports
+- Keep other CLI improvements
+
+### 4. `pkg/vmcp/router/default_router.go`
+- Remove `optim_*` prefix handling (if added)
+- Keep other router improvements
+
+### 5. `cmd/thv-operator/pkg/vmcpconfig/converter.go`
+- Remove `resolveEmbeddingService` function
+- Remove optimizer config conversion logic
+- Keep other converter improvements
+
+### 6. CRD Files
+- `deploy/charts/operator-crds/files/crds/toolhive.stacklok.dev_virtualmcpservers.yaml`
+- `deploy/charts/operator-crds/templates/toolhive.stacklok.dev_virtualmcpservers.yaml`
+- Revert optimizer config schema to simpler version from main
+
+### 7. `docs/operator/crd-api.md`
+- Remove optimizer config documentation (or revert to simpler version)
+
+### 8. `Taskfile.yml`
+- Remove `-tags="fts5"` build flags (optimizer-specific)
+- Remove `test-optimizer` task
+
+### 9. `go.mod` and `go.sum`
+- Remove optimizer-related dependencies (chromem-go, sqlite-vec, etc.)
+- Keep other dependency updates
+
+### 10. `cmd/vmcp/README.md`
+- Remove optimizer mentions from "In Progress" section
+
+## Files That Stay in Both Branches (Enabler Changes)
+- `pkg/vmcp/aggregator/default_aggregator.go` - OpenTelemetry tracing
+- `pkg/vmcp/discovery/manager.go` - Singleflight deduplication
+- `pkg/vmcp/health/checker.go` - Self-check prevention
+- `pkg/vmcp/health/checker_selfcheck_test.go` - New test file
+- `pkg/vmcp/health/checker_test.go` - Test updates
+- `pkg/vmcp/health/monitor.go` - Health monitor updates
+- `pkg/vmcp/health/monitor_test.go` - Test updates
+- `pkg/vmcp/client/client.go` - HTTP timeout fixes
+- `test/e2e/thv-operator/virtualmcp/helpers.go` - Test reliability fixes
+- `test/e2e/thv-operator/virtualmcp/virtualmcp_auth_discovery_test.go` - Test fixes
+- `test/integration/vmcp/helpers/helpers_test.go` - Test updates
+- `.gitignore` - Debug binary patterns
+- `.golangci.yml` - Scripts exclusion
+- `codecov.yaml` - Test coverage exclusions
+- `deploy/charts/operator-crds/Chart.yaml` - Version bump
+- `deploy/charts/operator-crds/README.md` - Version update
+
+## Next Steps
+1. Manually edit the files listed above in `optimizer-enablers` branch
+2. Test that `optimizer-enablers` branch compiles and works without optimizer
+3. Verify `optimizer-implementation` branch has all changes intact