fix(bilibili): use actual user UID instead of 0 for favorite command

[zhanghui67]

Summary

• Fix bilibili favorite command returning empty results
• Changed up_mid: 0 to use the actual logged-in user's UID via getSelfUid()

Problem

The opencli bilibili favorite command was always returning empty results because the API call used up_mid: 0 which doesn't return any favorite folders.

Solution

Import and use getSelfUid() to fetch the current user's UID before querying the favorite folders API.

Test

Before fix:

$ opencli bilibili favorite
(no data)

After fix:

$ opencli bilibili favorite --limit 5
  bilibili/favorite
┌──────┬──────────────────────────────────────┬─────────────────┬─────────┐
│ Rank │ Title                                │ Author          │ Plays   │
├──────┼──────────────────────────────────────┼─────────────────┼─────────┤
│ 1    │ 神经网络通用近似定理详解              │ 数理分享        │ 9535    │
│ 2    │ DGX Spark vs Mac Studio              │ 至顶AI实验室    │ 30285   │
│ ...  │ ...                                  │ ...             │ ...     │
└──────┴──────────────────────────────────────┴─────────────────┴─────────┘

[jackwener]

Review summary:

Priority	Issue	File	Action
P1	Missing regression coverage for the UID-dependent folder lookup	src/clis/bilibili/favorite.ts	Fixed by adding src/clis/bilibili/favorite.test.ts

The functional fix is correct: bilibili favorite should query /x/v3/fav/folder/created/list-all with the logged-in user's real UID, not 0.

I pushed a small follow-up commit to lock this behavior with a targeted unit test. Validation on the updated branch:

• npx vitest run src/clis/bilibili/favorite.test.ts src/clis/bilibili/dynamic.test.ts
• npm run typecheck
• npm test
• npm run build

Approve.