Catalog: forgectrl.lease leaves

forgectrl.lease leaves for forgectrl's tests/host_lease.sh (0086e65),
which passed as build.yml runs it: with the gate open and cnc/state idle,
the switches check held at its first wait names wizard:switches, kind
hardware, as the holder; POST /diag/flow-verify, /curve/record,
/logs/export, /mode with the mode in force, /controller/start and
/settings are each 409 in the holder's name, none for an idle machine or
a closed gate; the abort frees the lease and the same settings write is
200; lease.changed carries the take before the free. lease_test and
super_test case K hold the lease's own rules. The catalog goes from 81 to
80 (80 @test in forgetest/forgetest/suite/).

_EventStream, _lease and _text, which only it read, go with it, and so
does urllib.parse, which only _EventStream used; socket stays for lan_ip.
No test requires the id, and no unit test names it.

The coverage lint on the tree manifest then named forgectrl src/events.c
and src/events.h, and nothing else beside setup.check-lens's empty
src/lensfind.* entry. One HOST_TESTED row takes them, to
forgectrl:tests/events_test.c on forgectrl:.github/workflows/build.yml,
which the pin c274f19 runs (./build/events_test). The lint then finds
no uncovered path and no host-tested row problem across the 80 tests;
its one finding is setup.check-lens's. test_manifest.py (34) passes, and
pyflakes reports nothing on forgectrl.py or manifest.py. The full
forgetest suite was not run.

Fingerprints, measured against the parent: 26 tests move with
forgectrl.py's shared text: the 4 left in it (auth, panel-serves,
settings-bounds, tokens), the 5 left in exthost.py and the 17 of the
setup family, whose modules import lan_ip from it (exthost.py and
setup.py, and through setup.py the rest). The pending pin bumps from
forgectrl c274f19 and forgeext 2d0391e already owe 24 of them;
exthost.platform has been owed since 30c0a05 and setup.machine-name
since 70e13bd. This deletion adds none to the owed list. releases/ and
TEST-AUDIT.md are unchanged.

forgetest/forgetest/manifest.py

@@ -159,6 +159,9 @@ HOST_TESTED = [
     # the closed list of actions, the host's words, the catalog's fetch (the
     # routes against a live host's stand-in are tests/host_ext.sh).
     ("forgectrl", "src/extpkg.*", "forgectrl:tests/extpkg_test.c", "forgectrl:.github/workflows/build.yml"),
+    # The event stream: a button edge, a lease changing hands, telemetry
+    # (the live order, the take before the free, is tests/host_lease.sh).
+    ("forgectrl", "src/events.*", "forgectrl:tests/events_test.c", "forgectrl:.github/workflows/build.yml"),
 ]
 
 # This repository's root, when the package runs from a checkout of it; a