Add masterwork rework, arena combat log, Death's Reprieve fix, and wordle improvements

Adventure — Masterwork Rework:
- Expand from 3 generic items to 15 tiered masterwork items across
  mining (weapon), fishing (armor), and foraging (boots) with per-tier
  drop rates (5%/4%/3%/2%/1.5%) and location gating
- Skill-specific cross-skill bonuses replace flat masterwork check
- Auto-equip if better, silent discard for duplicates, inventory for rest
- Add !adventure equip command for manual masterwork equipping
- Tiered room announcements: T1-2 DM only, T3 quiet, T4-5 full
- First-drop detection with special message
- Character sheet shows ⭐/⚔️ markers for masterwork/arena gear
- Sell protection for special gear in shop

Adventure — Arena Combat Log:
- Turn-based Dragon Quest style narrative for arena fights
- Outcome-first design: roll determines win/loss, log assembled backward
- No-repeat flavor text via actionPicker with per-pool tracking
- 60 participation XP on arena loss

Adventure — Death's Reprieve Fix:
- All equipment set to 1 condition instead of death-level degradation

Wordle:
- Refactored word sourcing and expanded fallback word list
- Simplified Wordnik integration

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

internal/db/db.go

@@ -64,6 +64,15 @@ func runMigrations(d *sql.DB) error {
 	// exists in SQLite (we just swallow "duplicate column name" errors).
 	columnMigrations := []string{
 		`ALTER TABLE adventure_characters ADD COLUMN holiday_action_taken INTEGER NOT NULL DEFAULT 0`,
+		`ALTER TABLE wordle_puzzles ADD COLUMN category TEXT NOT NULL DEFAULT ''`,
+		`ALTER TABLE adventure_equipment ADD COLUMN arena_tier INTEGER NOT NULL DEFAULT 0`,
+		`ALTER TABLE adventure_equipment ADD COLUMN arena_set TEXT NOT NULL DEFAULT ''`,
+		`ALTER TABLE adventure_equipment ADD COLUMN masterwork INTEGER NOT NULL DEFAULT 0`,
+		`ALTER TABLE adventure_characters ADD COLUMN death_reprieve_last DATETIME`,
+		`ALTER TABLE adventure_equipment ADD COLUMN skill_source TEXT NOT NULL DEFAULT ''`,
+		`ALTER TABLE adventure_characters ADD COLUMN masterwork_drops_received INTEGER NOT NULL DEFAULT 0`,
+		`ALTER TABLE adventure_inventory ADD COLUMN slot TEXT NOT NULL DEFAULT ''`,
+		`ALTER TABLE adventure_inventory ADD COLUMN skill_source TEXT NOT NULL DEFAULT ''`,
 	}
 	for _, stmt := range columnMigrations {
 		if _, err := d.Exec(stmt); err != nil {
@@ -803,6 +812,7 @@ CREATE TABLE IF NOT EXISTS wordle_puzzles (
 	room_id       TEXT NOT NULL,
 	answer        TEXT NOT NULL,
 	word_length   INTEGER NOT NULL,
+	category      TEXT NOT NULL DEFAULT '',
 	solved        INTEGER NOT NULL DEFAULT 0,
 	guess_count   INTEGER NOT NULL DEFAULT 0,
 	started_at    DATETIME NOT NULL,
@@ -843,16 +853,22 @@ CREATE TABLE IF NOT EXISTS adventure_characters (
 	last_action_date     TEXT NOT NULL DEFAULT '',
 	grudge_location      TEXT NOT NULL DEFAULT '',
 	created_at           DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
-	last_active_at       DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+	last_active_at       DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+	death_reprieve_last  DATETIME,
+	masterwork_drops_received INTEGER NOT NULL DEFAULT 0
 );
 
 CREATE TABLE IF NOT EXISTS adventure_equipment (
-	user_id     TEXT NOT NULL,
-	slot        TEXT NOT NULL,
-	tier        INTEGER NOT NULL DEFAULT 0,
-	condition   INTEGER NOT NULL DEFAULT 100,
-	name        TEXT NOT NULL,
+	user_id      TEXT NOT NULL,
+	slot         TEXT NOT NULL,
+	tier         INTEGER NOT NULL DEFAULT 0,
+	condition    INTEGER NOT NULL DEFAULT 100,
+	name         TEXT NOT NULL,
 	actions_used INTEGER NOT NULL DEFAULT 0,
+	arena_tier   INTEGER NOT NULL DEFAULT 0,
+	arena_set    TEXT NOT NULL DEFAULT '',
+	masterwork   INTEGER NOT NULL DEFAULT 0,
+	skill_source TEXT NOT NULL DEFAULT '',
 	PRIMARY KEY (user_id, slot)
 );
 
@@ -862,7 +878,9 @@ CREATE TABLE IF NOT EXISTS adventure_inventory (
 	name        TEXT NOT NULL,
 	item_type   TEXT NOT NULL,
 	tier        INTEGER NOT NULL,
-	value       INTEGER NOT NULL
+	value       INTEGER NOT NULL,
+	slot         TEXT NOT NULL DEFAULT '',
+	skill_source TEXT NOT NULL DEFAULT ''
 );
 CREATE INDEX IF NOT EXISTS idx_adv_inv_user ON adventure_inventory(user_id);