Initial commit: VMware vSphere API simulator scaffold.

Add the FastAPI app, PostgreSQL migrations, Docker/Helm packaging, API
contracts, docs, client examples, and the unit/integration/compatibility
test suite for local client and tooling labs without a real vCenter.

app/db/migrations/013_vsphere_pc_state.sql

@@ -0,0 +1,19 @@
+-- Durable SOAP PropertyCollector views / page tokens / WaitForUpdates versions.
+
+CREATE TABLE vsphere_pc_state (
+    kind text NOT NULL CHECK (kind IN ('view', 'token', 'version', 'meta')),
+    key text NOT NULL,
+    payload jsonb NOT NULL DEFAULT '{}'::jsonb,
+    updated_at timestamptz NOT NULL DEFAULT now(),
+    PRIMARY KEY (kind, key)
+);
+
+CREATE INDEX vsphere_pc_state_kind_idx ON vsphere_pc_state (kind);
+
+-- Ephemeral console tickets issued by REST/SOAP.
+CREATE TABLE vsphere_console_tickets (
+    ticket text PRIMARY KEY,
+    vm_moid text NOT NULL REFERENCES vsphere_objects (moid) ON DELETE CASCADE,
+    payload jsonb NOT NULL DEFAULT '{}'::jsonb,
+    created_at timestamptz NOT NULL DEFAULT now()
+);