refactor(x-media): split the post title from its content

`Fetched.title` carried whatever text the platform had — a tweet's body,
a bilibili dynamic's body, a pixiv artwork's title — which was enough
while x/twitter (no title at all) set the shape. The platforms actually
disagree: pixiv has a title *and* a description, bilibili has an opus
headline *and* a body. Posts now carry both:

- `title`: the platform's title (a pixiv artwork title, a bilibili opus
  headline or video card title), empty on text-only platforms;
- `content`: the body (tweet / bsky / misskey text, bilibili dynamic
  body, and pixiv's description — fetched for the first time here and
  flattened from the app API's HTML to plain text).

`{content}` joins the caption-format placeholders, so a custom
`/set_format` can include a pixiv description. The built-in captions keep
producing byte-identical output: `compose_text` joins the two fields the
same way the single field already was, and bilibili's forward marker
(`//@author:`) now lands in `content` behind the head line's `title`.

`CachedPost.content` is `#[serde(default)]`, so link-cache entries and
queued task payloads written before the split still parse, their text
living in `title`.
This commit is contained in:
2026-09-18 00:44:49 +08:00
parent 0eb4e5c78d
commit 52184ba6fb
16 changed files with 301 additions and 111 deletions
+1 -1
View File
@@ -114,7 +114,7 @@ Telegram only accepts ports 443/80/88/8443.
| `/remove_forward_channel` | Remove the forward channel |
| `/edit_before_forward` | Toggle "edit before forward": when enabled, the bot posts a prompt after forwarding; replying to it edits the first forwarded message's caption (or taps a template button to apply one) |
| `/set_template <name>` | Reply to a message containing `[]` to save it as a named template; `[]` is replaced by the original post link when forwarding (used with "edit before forward") |
| `/set_format <site> <format>` | Customize the caption format for one site. Sites: `twitter` / `bsky` / `pixiv` / `misskey` / `bilibili`. Placeholders: `{url}` `{author}` `{author_url}` `{title}` `{tags}` |
| `/set_format <site> <format>` | Customize the caption format for one site. Sites: `twitter` / `bsky` / `pixiv` / `misskey` / `bilibili`. Placeholders: `{url}` `{author}` `{author_url}` `{title}` `{content}` `{tags}` |
| `/clear_cache [link]` | Clear the link cache (admin only); with a link only that entry, otherwise everything |
| `/bot_dict` | Show the current chat state (debugging; admin only) |
| `/test <link>` | Parse a link and send its media; no channel forward, no edit-before-forward prompt (send only) |