refactor(types): drop 127 unnecessary as any casts (#210)

Removed every `as any` in src/, then restored only the ones tsc still
needs: 163 → 36. 112 were in lotus-terminal.css.ts (`'… !important' as
any` etc. — vanilla-extract's style types accept these strings as-is),
so its file-wide eslint-disable goes too. The casts were type-only, so
emitted code and generated CSS are unchanged.

eslint warnings 49 → 46; the ratchet is tightened to match.
tsc clean; 1202 unit tests pass.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

src/app/features/room/message/ForwardMessageDialog.tsx

@@ -361,12 +361,9 @@ export function ForwardMessageDialog({ mEvent, onClose }: Props) {
       // failed) doesn't post the comment twice — only the missing forward.
       const needsComment = commentBody && !commentSentRef.current.has(id);
       const step = needsComment
-        ? mx
-            // eslint-disable-next-line @typescript-eslint/no-explicit-any
-            .sendMessage(id, null, { msgtype: MsgType.Text, body: commentBody } as any)
-            .then(() => {
-              commentSentRef.current.add(id);
-            })
+        ? mx.sendMessage(id, null, { msgtype: MsgType.Text, body: commentBody }).then(() => {
+            commentSentRef.current.add(id);
+          })
         : Promise.resolve();
       return step.then(sendForward);
     };