fix: adapt to Twitter API schema changes (April 2026) (#51)

- Migrate user profile fields from `legacy{}` to `core{}` / `avatar{}` / `location{}` (with legacy fallback for older response shapes). Affects `user`, `whoami`, `status`, `followers`, `following`.
- Fix `user-posts` empty results: add missing `includePromotedContent` variable and update `instructions` path from `timeline_v2` to `timeline`.
- Switch `followers` / `following` to POST (Twitter changed the requirement).
- Refresh 16 stale `FALLBACK_QUERY_IDS` from fa0311/twitter-openapi.
- Drop `legacy{}` early-return in `parse_user_result`; key existence on `rest_id` so followers/following keep working when Twitter fully drops legacy.
- Add unit tests for the new core/avatar/location fallback chain and rest_id/typename guards.

twitter_cli/graphql.py

@@ -27,26 +27,26 @@ TWITTER_OPENAPI_URL = (
 
 # ── Fallback (hardcoded) queryIds ────────────────────────────────────────
 FALLBACK_QUERY_IDS = {
-    "HomeTimeline": "L8Lb9oomccM012S7fQ-QKA",
-    "HomeLatestTimeline": "tzmrSIWxyV4IRRh9nij6TQ",
-    "UserByScreenName": "IGgvgiOx4QZndDHuD3x9TQ",
-    "UserTweets": "O0epvwaQPUx-bT9YlqlL6w",
-    "TweetDetail": "xIYgDwjboktoFeXe_fgacw",
-    "Likes": "RozQdCp4CilQzrcuU0NY5w",
-    "SearchTimeline": "rkp6b4vtR9u7v3naGoOzUQ",
-    "Bookmarks": "uzboyXSHSJrR-mGJqep0TQ",
-    "ListLatestTweetsTimeline": "fb_6wmHD2dk9D-xYXOQlgw",
-    "Followers": "Enf9DNUZYiT037aersI5gg",
-    "Following": "ntIPnH1WMBKW--4Tn1q71A",
-    "CreateTweet": "zkcFc6F-RKRgWN8HUkJfZg",
-    "DeleteTweet": "nxpZCY2K-I6QoFHAHeojFQ",
+    "HomeTimeline": "c-CzHF1LboFilMpsx4ZCrQ",
+    "HomeLatestTimeline": "BKB7oi212Fi7kQtCBGE4zA",
+    "UserByScreenName": "1VOOyvKkiI3FMmkeDNxM9A",
+    "UserTweets": "q6xj5bs0hapm9309hexA_g",
+    "TweetDetail": "xd_EMdYvB9hfZsZ6Idri0w",
+    "Likes": "lIDpu_NWL7_VhimGGt0o6A",
+    "SearchTimeline": "VhUd6vHVmLBcw0uX-6jMLA",
+    "Bookmarks": "2neUNDqrrFzbLui8yallcQ",
+    "ListLatestTweetsTimeline": "RlZzktZY_9wJynoepm8ZsA",
+    "Followers": "IOh4aS6UdGWGJUYTqliQ7Q",
+    "Following": "zx6e-TLzRkeDO_a7p4b3JQ",
+    "CreateTweet": "IID9x6WsdMnTlXnzXGq8ng",
+    "DeleteTweet": "VaenaVgh5q5ih7kvyVjgtg",
     "FavoriteTweet": "lI07N6Otwv1PhnEgXILM7A",
     "UnfavoriteTweet": "ZYKSe-w7KEslx3JhSIk5LA",
-    "CreateRetweet": "mbRO74GrOvSfRcJnlMapnQ",
-    "DeleteRetweet": "ZyZigVsNiFO6v1dEks1eWg",
+    "CreateRetweet": "ojPdsZsimiJrUGLR1sjUtA",
+    "DeleteRetweet": "iQtK4dl5hBmXewYZuEOKVw",
     "CreateBookmark": "aoDbu3RHznuiSkQ9aNM67Q",
     "DeleteBookmark": "Wlmlj2-xzyS1GN3a6cj-mQ",
-    "TweetResultByRestId": "zy39CwTyYhU-_0LP7dljjg",
+    "TweetResultByRestId": "7xflPyRiUxGVbJd4uWmbfg",
     "BookmarkFoldersSlice": "i78YDd0Tza-dV4SYs58kRg",
     "BookmarkFolderTimeline": "hNY7X2xE2N7HVF6Qb_mu6w",
 }