chore(ecosystem): record radius, trace and trail in the canonical inventory (#344)

ecosystem.yaml is the canonical repository inventory that tooling consumes
instead of carrying its own repo-name list, but it listed only six of the nine
directories in the graycode-eco workspace.

radius is a pnpm workspace (typescript) and takes no part in rho's go.work,
so its `workspace` flag is false: the true value makes CI check it out as a Go
sibling and the module-hygiene job fails. trace and trail are Go modules; the
manifest validator checks each entry against that repo's go.mod, so trace is
recorded as github.com/GrayCodeAI/trace rather than a bare `trace`.

`ecosystem-manifest.sh validate` reports 9 repositories, `list workspace`
still reports rho and flux, and `check-ecosystem-boundaries.sh` passes.

Author: Patel230

ecosystem.yaml

@@ -57,3 +57,29 @@ repositories:
     language: go
     module: github.com/graycodeai/across
     workspace: false
+
+  - directory: radius
+    github_repo: radius
+    product_name: Radius
+    kind: product
+    language: typescript
+    # Not a Go module: radius is a pnpm workspace, so it takes no part in
+    # rho's go.work. `workspace: true` here would make CI try to check it out
+    # as a Go sibling and fail.
+    workspace: false
+
+  - directory: trace
+    github_repo: trace
+    product_name: Trace
+    kind: product
+    language: go
+    module: github.com/GrayCodeAI/trace
+    workspace: false
+
+  - directory: trail
+    github_repo: trail
+    product_name: Trail
+    kind: product
+    language: go
+    module: github.com/graycodeai/trail
+    workspace: false