feat: implement preferred port allocation and per-address enable/disable

- Add AvailablePorts::try_alloc() with SSL tracking (BTreeMap<u16, bool>)
- Add DerivedAddressInfo on BindInfo with private_disabled/public_enabled/possible sets
- Add Bindings wrapper with Map impl for patchdb indexed access
- Flatten HostAddress from single-variant enum to struct
- Replace set-gateway-enabled RPC with set-address-enabled
- Remove hostname_info from Host; computed addresses now in BindInfo.addresses.possible
- Compute possible addresses inline in NetServiceData::update()
- Update DB migration, SDK types, frontend, and container-runtime

sdk/base/lib/osBindings/Host.ts

@@ -1,14 +1,9 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
-import type { BindInfo } from './BindInfo'
-import type { HostnameInfo } from './HostnameInfo'
+import type { Bindings } from './Bindings'
 import type { PublicDomainConfig } from './PublicDomainConfig'
 
 export type Host = {
-  bindings: { [key: number]: BindInfo }
+  bindings: Bindings
   publicDomains: { [key: string]: PublicDomainConfig }
   privateDomains: Array<string>
-  /**
-   * COMPUTED: NetService::update
-   */
-  hostnameInfo: { [key: number]: Array<HostnameInfo> }
 }