storkit: create 408_spike_fly_io_machines_api_integration_for_multi_tenant_storkit_saas

.storkit/work/1_backlog/408_spike_fly_io_machines_api_integration_for_multi_tenant_storkit_saas.md

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+---
+name: "Fly.io Machines API integration for multi-tenant storkit SaaS"
+---
+
+# Spike 408: Fly.io Machines API integration for multi-tenant storkit SaaS
+
+## Question
+
+Build and test the Rust integration for Fly.io Machines API: create/start/stop/destroy machines per tenant, attach volumes, inject secrets, and implement the JWT auth reverse proxy with WebSocket support.
+
+## Hypothesis
+
+- TBD
+
+## Timebox
+
+- TBD
+
+## Investigation Plan
+
+- TBD
+
+## Findings
+
+- TBD
+
+## Recommendation
+
+- TBD