Play hub + Daily Word game (Phase 1 of the games feature)

A calm /play space — "after the brief, a small thing to enjoy." Framework-ready
for more games (Word Search next; zen/coloring later).

* Daily Word (5 letters / 6 guesses) + Long Word (6 / 7) — same Wordle mechanic,
  Upbeat Bytes flavor (no "Wordle" in the UI). Hopeful answers; after solving, a
  one-line "why this word matters."
* LLM proposes, code disposes: answers are picked deterministically by date-seed
  from a hand-curated hopeful pool that's pre-validated ⊆ the guess dictionary
  (always typeable), avoiding recent repeats; the LLM only adds the optional
  "why" (with fallback). daily_puzzles(date, game, variant, payload) stores them
  so everyone gets the same daily; the cycle pre-generates with the "why".
* Bundled guess dictionaries (words-5/6.json, ~12.6k/22.4k) for client-side guess
  validation — never the LLM. Answer lightly obfuscated (base64) in the payload.
* Private, gentle stats (played/solved/streak, guess distribution); spoiler-free
  emoji-grid share. No leaderboard, no timer, no streak-loss drama.
* Play in the bottom nav (replacing Browse, still on the lane rail) + the header.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

goodnews/data/wordpool.json

@@ -0,0 +1,101 @@
+{
+"5": [
+"ample",
+"amply",
+"award",
+"bliss",
+"bloom",
+"bonus",
+"brave",
+"charm",
+"cheer",
+"clear",
+"dream",
+"favor",
+"fresh",
+"gifts",
+"glows",
+"grace",
+"green",
+"happy",
+"heals",
+"heart",
+"honor",
+"hopes",
+"ideal",
+"learn",
+"light",
+"lucky",
+"mends",
+"mercy",
+"merry",
+"noble",
+"peace",
+"prize",
+"quiet",
+"reach",
+"ready",
+"relax",
+"renew",
+"savor",
+"share",
+"shine",
+"smile",
+"still",
+"sunny",
+"teach",
+"thank",
+"treat",
+"trust",
+"truth",
+"unity",
+"value",
+"vital"
+],
+"6": [
+"beauty",
+"bestow",
+"bright",
+"credit",
+"devote",
+"esteem",
+"gather",
+"gentle",
+"giving",
+"growth",
+"health",
+"joyful",
+"kindly",
+"lively",
+"lovely",
+"mellow",
+"mended",
+"nature",
+"praise",
+"reborn",
+"repair",
+"rescue",
+"revive",
+"reward",
+"secure",
+"serene",
+"simple",
+"smiled",
+"soothe",
+"spirit",
+"steady",
+"strong",
+"summit",
+"superb",
+"tender",
+"thanks",
+"thrive",
+"united",
+"uplift",
+"valued",
+"vision",
+"warmth",
+"wisdom",
+"wonder"
+]
+}