chore: Enable more lint rules, disable some that trigger a lot. Will clean up later.

src/config/io.ts

@@ -178,7 +178,7 @@ export function parseConfigJson5(
   json5: { parse: (value: string) => unknown } = JSON5,
 ): ParseConfigJson5Result {
   try {
-    return { ok: true, parsed: json5.parse(raw) as unknown };
+    return { ok: true, parsed: json5.parse(raw) };
   } catch (err) {
     return { ok: false, error: String(err) };
   }

src/config/sessions.cache.test.ts

@@ -94,7 +94,7 @@ describe("Session Store Cache", () => {
     const loaded1 = loadSessionStore(storePath);
     loaded1["session:1"].cliSessionIds = { openai: "mutated" };
     if (loaded1["session:1"].skillsSnapshot?.skills?.length) {
-      loaded1["session:1"].skillsSnapshot!.skills[0].name = "mutated";
+      loaded1["session:1"].skillsSnapshot.skills[0].name = "mutated";
     }
 
     const loaded2 = loadSessionStore(storePath);

src/config/sessions/group.ts

@@ -79,7 +79,7 @@ export function resolveGroupSessionKey(ctx: MsgContext): GroupKeyResolution | nu
   const second = parts[1]?.trim().toLowerCase();
   const secondIsKind = second === "group" || second === "channel";
   const kind = secondIsKind
-    ? (second as "group" | "channel")
+    ? second
     : from.includes(":channel:") || normalizedChatType === "channel"
       ? "channel"
       : "group";

src/config/sessions/store.ts

@@ -127,7 +127,7 @@ export function loadSessionStore(
     const raw = fs.readFileSync(storePath, "utf-8");
     const parsed = JSON5.parse(raw);
     if (isSessionStoreRecord(parsed)) {
-      store = parsed as Record<string, SessionEntry>;
+      store = parsed;
     }
     mtimeMs = getFileMtimeMs(storePath) ?? mtimeMs;
   } catch {
@@ -317,7 +317,7 @@ async function withSessionStoreLock<T>(
 
       const now = Date.now();
       if (now - startedAt > timeoutMs) {
-        throw new Error(`timeout acquiring session store lock: ${lockPath}`);
+        throw new Error(`timeout acquiring session store lock: ${lockPath}`, { cause: err });
       }
 
       // Best-effort stale lock eviction (e.g. crashed process).