fix(ci): shorten the cloud-dispatch feature summary and retire the stale installer assertion [skip ci]

Two of the hosted-red checks seen on main (run 40208377293, PR #7087 at base
f98cb165a3) are repo-side drift, not the PR's:

- docs/features.toml: the cloud-computer-dispatch summary was 143 characters;
  the feature_registry test allows 1-120 on one line. Reworded to fit.
- .github/scripts/release-workflows.test.js: e9c9de775f deliberately dropped
  the codewhale-tui compatibility-path guard from scripts/release/install.sh
  (the installer never writes that name), but this script still demanded a
  legacy_tui validation, so the "Version drift" job failed with "archive
  installs must validate the retired TUI path". The stale match and its
  now-false comment are removed, and the companion doesNotMatch (which tested
  a variable that no longer exists, so it could never fail) now asserts the
  installer never installs a file to $BIN_DIR/codewhale-tui.

Still red and NOT fixed here: Lint fails on clippy::should_implement_trait for
FleetRole::from_str at crates/agent-contract/src/role.rs:148 (about 15 call
sites in crates/tui). That edit recompiles codewhale-tui and belongs to the
Engine owner's next batch.

Verified (own runs on the current tree):
  node .github/scripts/release-workflows.test.js: exit 0 (was: AssertionError
    at the legacy_tui assertion on the same tree before the edit).
  python tomllib over docs/features.toml: 79 rows, 0 summaries outside 1-120
    characters or containing a newline.
Not verified: cargo test -p codewhale-tui --test feature_registry (a tui test
build; the only reported problem was the summary length), hosted CI.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

.github/scripts/release-workflows.test.js

@@ -750,18 +750,10 @@ assert.equal(
   2,
   "both glibc recovery branches must name codewhale-cli",
 );
-// The archive installer never overwrites an existing command: it validates the
-// retired TUI path against the consolidated bytes and leaves upgrades to
-// `codewhale update`, which migrates `codewhale-tui` beside the canonical pair.
-assert.match(
-  archiveInstaller,
-  /legacy_tui="\$BIN_DIR\/codewhale-tui"[\s\S]*check_destination "\$SCRIPT_DIR\/codewhale" "\$legacy_tui"/,
-  "archive installs must validate the retired TUI path against consolidated bytes",
-);
 assert.doesNotMatch(
   archiveInstaller,
-  /install_binary "\$SCRIPT_DIR\/codewhale" "\$legacy_tui"/,
-  "archive installs must not overwrite an existing retired TUI command",
+  /install_binary "\$SCRIPT_DIR\/[^"]+" "\$BIN_DIR\/codewhale-tui"/,
+  "archive installs must not write the retired codewhale-tui command",
 );
 assert.doesNotMatch(
   cliDispatcher,

docs/features.toml

@@ -39,7 +39,7 @@
 [[feature]]
 id = "cloud-computer-dispatch"
 name = "Cloud computer conversations"
-summary = "Dispatch, inspect, continue and stop the same account cloud conversation from terminal and desktop, including conversations with a saved whale."
+summary = "Dispatch, inspect, continue and stop one account cloud conversation from terminal and desktop, saved whales included."
 status = "experimental"
 surfaces = { tui = "preview" }
 since = "unreleased"