feat(picker): add the speedrun mood and the speedrun.com link

"What to play next" gets a Speedrun mood. The game detail links the
game's speedrun.com page when Core found one with verified runs; only
https://www.speedrun.com/ links are shown.

README.md

@@ -22,14 +22,16 @@ To Be Played is split into three repositories:
 - **Dashboard**: most played games, games in progress, "Pile of Shame" with backlog hours and a random suggestion,
   Steam avatar and a banner from the most played game of the last two weeks, and an achievement card: unlocked
   total, perfect games, average completion and the 5 games closest to 100 %.
-- **What to play next** (`/play-next`): three backlog picks for a time budget (up to 5 / 15 / 40 h or any), high
-  priority first, reroll without repeats, and "Start playing" in one click.
+- **What to play next** (`/play-next`): three backlog picks for a time budget (up to 5 / 15 / 40 h or any) and a mood
+  (story, co-op, chill, action, scary from IGDB; speedrun from speedrun.com), high priority first, reroll without
+  repeats, and "Start playing" in one click.
 - **Library**: status filters, "short games" filter (up to 10 h), search, sorting by playtime, recently seen, newest
   in library, rating or priority, paging. Each row shows the unlocked achievements.
 - **Add a game by name** for games outside Steam (PlayStation, Switch, Xbox, physical): search IGDB, pick a hit,
   a platform and optional hours. Works without a Steam ID.
 - **Game detail**: status, priority, 1–5 star rating, notes, achievements, time to beat (story / extras / 100 %),
-  a hint when Steam shows recent playtime for a game still in the backlog, and one to set the status to 100 % when
+  a link to the game's speedrun.com page when it has verified runs, a hint when Steam shows recent playtime for a
+  game still in the backlog, and one to set the status to 100 % when
   every achievement is unlocked.
 - **Wishlist** with store price and discount.
 - **Public profile** at `/u/<display name>`, opt-in in the settings, with perfect games and average completion.
@@ -64,6 +66,7 @@ flowchart LR
     Core --> Steam["Steam Web API"]
     Core --> Igdb["IGDB API"]
     Core -->|"OAuth token"| Twitch["Twitch"]
+    Core --> Speedrun["speedrun.com API"]
     Browser -.->|"game art"| Images["Steam and IGDB image hosts"]
 ```
 
@@ -117,7 +120,7 @@ npm run build
 
 ## Roadmap
 
-- Mood filter for "What to play next".
+See the roadmap in the ToBePlayed-Core readme.
 
 ## License