fix: cover tui in the CLI inventory and drop the em-dashes it printed

The inventory test predates the `tui` command, so a rename or an
accidental removal would have gone unnoticed: it now asserts the command,
its `-l`/`--list` flag and its optional position operand.

The digest and search-result lines joined their halves with an em-dash,
which the repo's own convention rules out, so both now use the middle dot
the surrounding lines already use. The one em-dash left in `src/tui/` is
load-bearing: `search-service.ts` builds a session snippet with it, and
the pattern that strips the repeated label has to match it.

Also moves `buildSearchEntries`'s doc comment back onto
`buildSearchEntries`; it had ended up stacked above a helper.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/tui/tui-app.ts

@@ -1399,7 +1399,7 @@ class TuiApp {
     }
     // Nothing to switch to (a history or file hit), so the row's own facts are
     // the answer; resuming one is phase 3.
-    this.model.updateSearch({ note: [entry.text, entry.detail].filter((part) => part).join(' — ') });
+    this.model.updateSearch({ note: [entry.text, entry.detail].filter((part) => part).join(' · ') });
   }
 
   private async openDigest(): Promise<void> {

src/tui/tui-client.ts

@@ -6,7 +6,7 @@
  * API the web UI uses, so the two surfaces can never disagree. This module is
  * the only place in `src/tui/` that does IO. It covers four jobs:
  *
- * 1. **Discovery + auth** — find the instance's server (`CODEMAN_API_URL`, else
+ * 1. **Discovery + auth**: find the instance's server (`CODEMAN_API_URL`, else
  *    loopback on `CODEMAN_PORT`), accepting the self-signed cert `--https`
  *    generates, and read credentials the way `codeman attach` already does
  *    (env, then the data dir's `.env`).
@@ -15,7 +15,7 @@
  * 3. **Live updates** over SSE, decoded by `tui-sse.ts`, with a staleness
  *    watchdog and capped backoff. The TUI does not patch rows from payloads: an
  *    interesting event means "resync", and the app layer debounces the refetch.
- * 4. **Degraded mode** — when nothing answers, sessions are enumerated straight
+ * 4. **Degraded mode**: when nothing answers, sessions are enumerated straight
  *    from tmux plus a read-only peek at `state.json`, which keeps the "the
  *    server died, get me to my sessions" path that `sc` has today.
  *

src/tui/tui-digest.ts

@@ -47,7 +47,7 @@ function ageColumn(item: AwayDigestItem, now: number): string {
 
 function itemLine(item: AwayDigestItem, now: number): string {
   const who = item.sessionName ?? item.sessionId?.slice(0, 8) ?? '';
-  const what = [item.title, item.detail].filter((part) => part && part.trim() !== '').join(' — ');
+  const what = [item.title, item.detail].filter((part) => part && part.trim() !== '').join(' · ');
   return `  ${ageColumn(item, now)} ${[who, what].filter((part) => part !== '').join('  ')}`.replace(/\s+$/, '');
 }
 

src/tui/tui-model.ts

@@ -208,6 +208,17 @@ const SEARCH_GROUP_LABELS: Record<SearchSourceType, string> = {
   file: 'FILES',
 };
 
+/**
+ * A session snippet opens with the session's own name, which the row already
+ * shows in its first column (`search-service.ts` builds it as
+ * `w1-alpha <em dash> /tmp/alpha`, hence the separator in the pattern).
+ * Dropping the repeat is what keeps a result row from reading as a stutter.
+ */
+function withoutLabelPrefix(snippet: string, label: string): string {
+  const rest = snippet.startsWith(label) ? snippet.slice(label.length) : snippet;
+  return rest === snippet ? snippet : rest.replace(/^\s*(?:[—:-]\s*)?/, '');
+}
+
 /**
  * Flatten `GET /api/search`'s typed groups into the overlay's lines: a header
  * per group, then its results. Only a result row carries a session id, which is
@@ -217,16 +228,6 @@ const SEARCH_GROUP_LABELS: Record<SearchSourceType, string> = {
  * has a session id too, but selecting it would move the cursor to a row that is
  * not on the list.
  */
-/**
- * A session snippet opens with the session's own name (`w1-alpha — /tmp/alpha`),
- * which the row already shows in its first column. Dropping the repeat is what
- * keeps a result row from reading as a stutter.
- */
-function withoutLabelPrefix(snippet: string, label: string): string {
-  const rest = snippet.startsWith(label) ? snippet.slice(label.length) : snippet;
-  return rest === snippet ? snippet : rest.replace(/^\s*(?:[—:-]\s*)?/, '');
-}
-
 export function buildSearchEntries(
   groups: readonly SearchResultGroup[],
   isLive: (sessionId: string) => boolean