fix(lanes,reload): count a pipeline run by declarations, and stop the two reload commands merging

Closes #26, #25.

`runs` is the denominator every pass rate on the Workflows page is read
against, and any backwards move opened a new one. Stage detection bounces by
design — one feature reads `implement → tests → implement` as the session
edits, runs the suite and edits again — so a single feature was recorded as
five or six runs, and a lane in constant use reported a handful of passes
spread across dozens of phantom runs. A backwards move now opens a run only
when it is DECLARED; a backwards detection continues the run in flight.
Reaching the final node still closes the run for either, since work after
`done` is new work however it was observed. Replayed over this repo's own lane
the rule takes 26 recorded runs down to the 5 features that actually shipped
through it. The panel itself is unchanged: passes are still declarations only.

`/reload-plugins` and `/reload-skills` were typed back to back. Claude Code
opens its slash-command menu the moment `/` is typed and the Enter that follows
lands on that menu, so the second command was appended to the line still in the
composer and the pane submitted `/reload-plugins/reload-skills` — which Claude
Code runs as `/reload-plugins` with an argument, never reloading skills, and
leaving a stray prompt turn in the scrollback. Reproduced and fixed against a
live pane: SETTLE_MS (1s) between the two sends, which makes
`reloadOpenSessions` async rather than block the event loop, and the same pause
in the detached update-all worker.

scripts/cc-update-all-helper.js

@@ -160,7 +160,15 @@ function reloadPanes() {
     // a shell command instead.
     if (SHELL_COMMANDS.has(paneCmd)) continue;
     try {
+      let first = true;
       for (const command of ["/reload-plugins", "/reload-skills"]) {
+        // Let the first command actually submit before typing the second, or
+        // both land on one composer line and Claude Code runs the pair as
+        // `/reload-plugins /reload-skills` — see SETTLE_MS in
+        // server/lib/cc-reload.js. Blocking is fine here: this worker is
+        // detached and serves no requests.
+        if (!first) execFileSync("sleep", ["1"], { timeout: 15_000 });
+        first = false;
         execFileSync("tmux", ["send-keys", "-t", name, "-l", command], { timeout: 15_000 });
         execFileSync("tmux", ["send-keys", "-t", name, "Enter"], { timeout: 15_000 });
       }