[Dav-14]

Summary

Add Connectivity to the unified Stack SDK contract using the existing component composition pattern.

• Fetch misc/connectivity-api/openapi.yaml from Connectivity main using CONNECTIVITY_VERSION and authenticated GitHub CLI access. Connectivity releases do not currently publish an OpenAPI asset.
• Add /api/connectivity, the connectivity.v1 SDK group and the connectivity model namespace. Preserve source bearer authentication and scope descriptions, as for Ledger.
• Qualify only Connectivity's _info operation as connectivityInfo. Without this exception Speakeasy renames the existing Ledger info to info_ledgerV3. The other 13 Connectivity operation IDs remain unchanged.
• Remove the added composition documentation and README link. No dedicated Connectivity preparation/validation/test scripts or OpenAPI-version assertion.

Enum validation fix

Connectivity has a schema property named enum, whose value is a schema object ({"type":"array","items":{"type":"string"}}). The existing recursive filter passes this object to unique and fails:

object cannot be sorted, as it is not an array

Selecting only enum values of type array preserves the duplicate-enum check without confusing this property with an enumeration list. On the same generated contract the original filter exits 5; the corrected filter exits 0.

Evidence

• Rebased onto 88d6ee9264fa1189bbe5584c23c2fea7be1283b5 at 8f3ef8ec6a9cbeb9411e8b6d1b6c3f1a0084fc03: all six commits are patch-equivalent. Fresh full precommit (temporary no-upload mode), baseline comparison and cd events && go test ./... passed. Independent rebase review found no new static findings.
• Full precommit recipe passed against Connectivity main: composition, existing invariants and event generation. Verification used a temporary Justfile with --skip-upload-spec; the committed build command remains speakeasy run -s all, and registry upload was not exercised.
• Baseline comparison: all 271 existing paths, including their operation IDs, are identical. All 891 existing component entries are identical except the appended Connectivity description on the shared bearer scheme. All 14 Connectivity operations are retained. The merged document remains OpenAPI 3.0.3; source prerequisite Connectivity feat: add nats logging callbacks and webhooks logging #493 is merged.
• Final independent static review covers naming, preparation consistency, the operation-ID collision and removal of the documentation. It is a technical review, not human approval.
• Unified Go SDK compilation remains unqualified: earlier generation with the official workflow failed on an empty pkg/models/shared, also reproduced with the original Stack main contract. This PR does not fix that baseline issue.

Merge Danger

Door: two-way. No server behavior or stored-data migration.

Blast Radius: SDKs. Local builds now need private Connectivity read access; anonymous builds cannot fetch that input. Release CI uses NUMARY_GITHUB_TOKEN, whose private-repository access remains unverified. Following main means rebuilding an older Stack revision may consume a newer Connectivity contract. A future authorized release exposes this private contract in public release assets and the shared SDK source. Other SDK languages and deployed routing remain unqualified. No Stack merge, tag, registry upload, SDK release or deployment was performed.