fix: tenancy.port is the intercept port (443); clear sdk dial error; 0.1.5

install.sh wrote tenancy.port 8081 (the in-pod port) but the
monky.tenancy.deploy intercept is 443, so the SDK found no intercept and the
check-in failed with 'service not available' followed by the SDK's bare
TypeError. Also wrap non-OSError SDK failures in a TransportError that names
the host:port and what to check.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KLB7jieMNRkTsJ2epr4Ds1

config.example.yaml

@@ -1,4 +1,4 @@
-# /etc/monky-deployd/config.yaml — monky-deployd v0.1.4 (MONKY-ADR-0028 §D)
+# /etc/monky-deployd/config.yaml — monky-deployd v0.1.5 (MONKY-ADR-0028 §D)
 # Written by packaging/install.sh (or the ansible role monky_deployd). YAML *subset*: maps, scalars,
 # simple lists, comments. Keys not listed here are a config error.
 
@@ -10,7 +10,7 @@ identity: /opt/openziti/etc/identities/monky-host.env-qa-02.json   # the box's h
 tenancy:
   service: monky.tenancy.deploy      # ziti service bound by the tenancy sidecar -> 127.0.0.1:8081 (agent entrypoint)
   host: monky.tenancy.deploy         # intercept host (sdk/system); defaults to `service`
-  port: 8081
+  port: 443   # intercept port of monky.tenancy.deploy (in-pod 8081)
   scheme: http                       # plain HTTP inside the mesh; the mesh is the transport security
   proxy_addr: 127.0.0.1:18443        # transport: proxy
   timeout_s: 30