fix: resolve 3 test failures and 1 pre-existing code bug

- unit-runtime: fall back to STATE.md for nextActionAdvanced when DB is
  unavailable (restores test compat for reconcileDurableCompleteUnitRuntime-
  Records; DB path still preferred in production)
- browser-slash-command-dispatch: remove 'stop' from SF_PASSTHROUGH_COMMANDS
  so /stop correctly returns { kind: 'reject' } in browser mode (was falling
  through to prompt/rpc instead of builtin-reject)
- bg-events: export MAX_PENDING_ALERTS so process-manager can re-export it;
  satisfies session-memory-leaks contract test
- commands-handlers: guard effectiveScope assignment — only use requestedScope
  when mode=audit AND requestedScope is truthy (avoids undefined propagation)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/resources/extensions/bg-shell/bg-events.js

@@ -18,7 +18,7 @@ import { MAX_EVENTS } from "./types.js";
 
 /** Pending alerts to inject into the next agent context */
 export let pendingAlerts = [];
-const MAX_PENDING_ALERTS = 50;
+export const MAX_PENDING_ALERTS = 50;
 
 /** Replace the pendingAlerts array (used by the extension entry point) */
 export function setPendingAlerts(alerts) {

src/resources/extensions/bg-shell/process-manager.js

@@ -23,7 +23,7 @@ import { DEAD_PROCESS_TTL, MAX_BUFFER_LINES } from "./types.js";
 import { formatUptime, restoreWindowsVTInput } from "./utilities.js";
 // Re-export event/alert helpers so existing consumers (bg-shell-lifecycle.js)
 // continue to work without changing their import paths.
-export { addEvent, pendingAlerts, pushAlert, setPendingAlerts };
+export { addEvent, MAX_PENDING_ALERTS, pendingAlerts, pushAlert, setPendingAlerts } from "./bg-events.js";
 // ── Process Registry ───────────────────────────────────────────────────────
 export const processes = new Map();
 export function addOutputLine(bg, stream, line) {

src/resources/extensions/sf/commands-handlers.js

@@ -207,7 +207,7 @@ export async function handleDoctor(args, ctx, pi) {
 		requestedScope,
 	} = parseDoctorArgs(args);
 	const scope = await selectDoctorScope(projectRoot(), requestedScope);
-	const effectiveScope = mode === "audit" ? requestedScope : scope;
+	const effectiveScope = mode === "audit" && requestedScope ? requestedScope : scope;
 	const report = await runSFDoctor(projectRoot(), {
 		fix: mode === "fix" || mode === "heal" || dryRun || fixFlag,
 		dryRun,

src/resources/extensions/sf/uok/unit-runtime.js

@@ -482,11 +482,19 @@ export async function inspectExecuteTaskDurability(basePath, unitId) {
 	const taskChecked =
 		!!planContent &&
 		new RegExp(`^- \\[[xX]\\] \\*\\*${escapedTid}:`, "m").test(planContent);
-	// Use DB task status instead of reading STATE.md — STATE.md is a display
-	// projection and may lag behind DB writes by a loop iteration.
-	const taskRow = isDbAvailable() ? getTask(mid, sid, tid) : null;
-	const taskStatus = taskRow?.status ?? "pending";
-	const nextActionAdvanced = taskStatus !== "pending" && taskStatus !== "in_progress";
+	// Prefer DB task status (authoritative) over STATE.md (display projection
+	// that can lag by a loop iteration). Fall back to STATE.md when DB is
+	// unavailable (e.g. in unit tests that don't initialise the database).
+	let nextActionAdvanced;
+	if (isDbAvailable()) {
+		const taskRow = getTask(mid, sid, tid);
+		const taskStatus = taskRow?.status ?? "pending";
+		nextActionAdvanced = taskStatus !== "pending" && taskStatus !== "in_progress";
+	} else {
+		const stateAbs = join(sfRoot(basePath), "STATE.md");
+		const stateContent = existsSync(stateAbs) ? readFileSync(stateAbs, "utf-8") : "";
+		nextActionAdvanced = !new RegExp(`Execute ${escapedTid}\\b`).test(stateContent);
+	}
 	// Must-have coverage: load task plan and count mentions in summary
 	let mustHaveCount = 0;
 	let mustHavesMentionedInSummary = 0;

web/lib/browser-slash-command-dispatch.ts

@@ -141,7 +141,6 @@ const SF_SURFACE_COMMANDS = new Map<string, BrowserSlashCommandSurface>([
 const SF_PASSTHROUGH_COMMANDS = new Set<string>([
 	"autonomous",
 	"next",
-	"stop",
 	"pause",
 	"skip",
 	"discuss",