Add a test suite, and fix the three dead-data bugs it found

There was no test file -- CLAUDE.md described the harness in prose and
referred to an "orphan-tag check" that did not exist. test.lua now stubs
the game globals and exercises the real engine, database and catalog tab
builders. It found three bugs on its first run:

* four_kind was the only theme in the catalog that could never be
  discovered. Theme discovery needs a giver and a wanter on two DIFFERENT
  fielded jokers, and The Family was its sole member -- so the Hands bar
  and the overall Progress bar could never reach 100%. DNA is the real
  enabler (copying a card is how you stack duplicate ranks, the only
  vanilla route to a reliable Four of a Kind), so it now gives the
  matching-hand tags as a pure enabler.

* hand_level was given by Space Joker and Burnt Joker and wanted by
  nobody, so it could never contribute to a score and its "want" tooltip
  text was unreachable. Nothing in vanilla rewards hand levels; the tag
  is dropped rather than faked.

* Invisible Joker had no tags at all, so it scored 0 against the entire
  game. Selling it duplicates one of your Jokers -- the same "stronger
  target, better payoff" logic Blueprint and Brainstorm already model --
  so it now wants copy_target.

The suite guards both directions of the tag contract (no orphan wants, no
dead gives), theme reachability, blurb widths, the inert-joker list, and
the card materialize fix from the previous commit.

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

synergies.lua

@@ -114,7 +114,7 @@ j('j_fibonacci',        {'mult'},                     {'retrig_scoring'})
 j('j_steel_joker',      {'xmult'})
 j('j_hack',             {'retrig_scoring'})
 j('j_pareidolia',       {'faces'})
-j('j_space',            {'hand_level'},               {'probability'})
+j('j_space',            {},                           {'probability'})
 j('j_burglar',          {'hands_up'})
 j('j_blackboard',       {'xmult'},                    {'spades','clubs'})
 j('j_sixth_sense',      {'spectral_gen'},             {'spectral_gen'})
@@ -127,9 +127,12 @@ j('j_vampire',          {'xmult'},                    {'enhance_gen'})
 j('j_hologram',         {'xmult','copy_target'},      {'card_gen'})
 j('j_cartomancer',      {'tarot_gen'})
 j('j_astronomer',       {'planet'},                   {'planet'})
-j('j_burnt',            {'hand_level'},               {'discards_up'})
+j('j_burnt',            {},                           {'discards_up'})
 j('j_bootstraps',       {'mult'},                     {'money'})
-j('j_dna',              {'card_gen'})
+-- DNA copies a played card into the deck, which is how you stack duplicate
+-- ranks -- the only vanilla route to a reliable Four of a Kind. Pure enabler:
+-- it gives the matching-hand tags without wanting them.
+j('j_dna',              {'card_gen','pair','three_kind','four_kind'})
 j('j_midas_mask',       {'gold_gen','enhance_gen'},   {'faces'})
 j('j_photograph',       {'xmult','copy_target'},      {'faces','retrig_scoring'})
 j('j_stone',            {'chips'},                    {'stone_gen'})
@@ -176,7 +179,9 @@ j('j_family',           {'xmult','four_kind'},        {'four_kind'})
 j('j_order',            {'xmult','straight'},         {'straight'})
 j('j_tribe',            {'xmult','flush'},            {'flush'})
 j('j_stuntman',         {'chips'})
-j('j_invisible',        {})
+-- Sell Invisible Joker to duplicate one of your Jokers: the same "the stronger
+-- the target, the better" logic as Blueprint and Brainstorm.
+j('j_invisible',        {},                           {'copy_target'})
 j('j_blueprint',        {},                           {'copy_target'})
 j('j_brainstorm',       {},                           {'copy_target'})
 j('j_drivers_license',  {'xmult'},                    {'enhance_gen'})
@@ -258,7 +263,6 @@ local TAG_TEXT = {
     discards_up    = {give = 'grants extra discards', want = 'feeds on discards'},
     probability    = {give = 'improves listed odds', want = 'relies on listed odds'},
     money          = {give = 'earns money', want = 'scales with your money'},
-    hand_level     = {give = 'levels up poker hands', want = 'rewards hand levels'},
     tarot_gen      = {give = 'creates Tarot cards', want = 'rewards Tarot use'},
     planet         = {both = 'shares the Planet economy'},
     spectral_gen   = {both = 'shares the Spectral theme'},
@@ -288,7 +292,7 @@ local TAG_ORDER = {
     'retrig_held', 'retrig_scoring', 'faces',
     'gold_gen', 'stone_gen', 'enhance_gen', 'card_gen',
     'tarot_gen', 'spectral_gen', 'planet',
-    'probability', 'discards_up', 'hands_up', 'hand_size', 'hand_level',
+    'probability', 'discards_up', 'hands_up', 'hand_size',
     'money', 'sell_value', 'joker_gen',
     'hearts', 'diamonds', 'spades', 'clubs',
     'pair', 'two_pair', 'three_kind', 'four_kind', 'straight', 'flush',