Add SQLite persistence, per-player NPC attitude system, character creation, and combat

- Add trait-based DB layer (db.rs) with SQLite backend for easy future swapping
- Player state persisted to SQLite: stats, inventory, equipment, room position
- Returning players skip chargen and resume where they left off
- Replace boolean hostile flag with 5-tier attitude system (friendly/neutral/wary/aggressive/hostile)
- Per-player NPC attitudes stored in DB, shift on kills with faction propagation
- Add character creation flow (chargen.rs) with data-driven races and classes from TOML
- Add turn-based combat system (combat.rs) with XP, leveling, and NPC respawn
- Add commands: take, drop, inventory, equip, use, examine, talk, attack, flee, stats
- Add world data: 5 races, 4 classes, hostile NPCs (rat, thief), new items

Made-with: Cursor

world/classes/cleric.toml

@@ -0,0 +1,12 @@
+name = "Cleric"
+description = "Devout healers and protectors, clerics channel divine power to mend and shield."
+
+[base_stats]
+max_hp = 100
+attack = 10
+defense = 14
+
+[growth]
+hp_per_level = 12
+attack_per_level = 2
+defense_per_level = 3

world/classes/mage.toml

@@ -0,0 +1,12 @@
+name = "Mage"
+description = "Wielders of arcane power, mages trade resilience for devastating force."
+
+[base_stats]
+max_hp = 70
+attack = 18
+defense = 6
+
+[growth]
+hp_per_level = 8
+attack_per_level = 4
+defense_per_level = 1

world/classes/rogue.toml

@@ -0,0 +1,12 @@
+name = "Rogue"
+description = "Quick and cunning, rogues strike from the shadows with lethal precision."
+
+[base_stats]
+max_hp = 85
+attack = 16
+defense = 8
+
+[growth]
+hp_per_level = 10
+attack_per_level = 4
+defense_per_level = 1

world/classes/warrior.toml

@@ -0,0 +1,12 @@
+name = "Warrior"
+description = "Masters of arms and armor, warriors lead the charge and hold the line."
+
+[base_stats]
+max_hp = 120
+attack = 14
+defense = 12
+
+[growth]
+hp_per_level = 15
+attack_per_level = 3
+defense_per_level = 2

world/races/dwarf.toml

@@ -0,0 +1,9 @@
+name = "Dwarf"
+description = "Stout and unyielding, dwarves are born of stone and stubbornness."
+
+[stats]
+strength = 1
+dexterity = -1
+constitution = 2
+intelligence = 0
+wisdom = 0

world/races/elf.toml

@@ -0,0 +1,9 @@
+name = "Elf"
+description = "Graceful and keen-eyed, elves possess an innate affinity for magic."
+
+[stats]
+strength = -1
+dexterity = 2
+constitution = -1
+intelligence = 2
+wisdom = 0

world/races/halfling.toml

@@ -0,0 +1,9 @@
+name = "Halfling"
+description = "Small and nimble, halflings slip through danger with uncanny luck."
+
+[stats]
+strength = -2
+dexterity = 3
+constitution = 0
+intelligence = 0
+wisdom = 1

world/races/human.toml

@@ -0,0 +1,9 @@
+name = "Human"
+description = "Versatile and adaptable, humans excel through sheer determination."
+
+[stats]
+strength = 0
+dexterity = 0
+constitution = 0
+intelligence = 0
+wisdom = 0

world/races/orc.toml

@@ -0,0 +1,9 @@
+name = "Orc"
+description = "Powerful and fierce, orcs channel raw fury into everything they do."
+
+[stats]
+strength = 3
+dexterity = 0
+constitution = 1
+intelligence = -2
+wisdom = -1

world/town/npcs/barkeep.toml

@@ -1,4 +1,7 @@
 name = "Grizzled Barkeep"
 description = "A weathered man with thick forearms and a permanent scowl. He polishes the same mug endlessly."
 room = "town:tavern"
-dialogue = "Welcome to The Rusty Tankard. We've got ale, and we've got stronger ale. Pick one."
+base_attitude = "friendly"
+
+[dialogue]
+greeting = "Welcome to The Rusty Tankard. We've got ale, and we've got stronger ale."

world/town/npcs/guard.toml

@@ -1,4 +1,7 @@
 name = "Town Guard"
 description = "A bored-looking guard in dented chainmail. He leans on his spear and watches passersby."
 room = "town:gate"
-dialogue = "Move along. Nothing to see here."
+base_attitude = "neutral"
+
+[dialogue]
+greeting = "Move along. Nothing to see here."

world/town/npcs/rat.toml

@@ -0,0 +1,11 @@
+name = "Giant Rat"
+description = "A mangy rat the size of a small dog. Its eyes gleam with feral hunger."
+room = "town:cellar"
+base_attitude = "hostile"
+respawn_secs = 60
+
+[combat]
+max_hp = 25
+attack = 6
+defense = 2
+xp_reward = 15

world/town/npcs/thief.toml

@@ -0,0 +1,12 @@
+name = "Shadowy Thief"
+description = "A cloaked figure lurking in the darkness, fingers twitching near a concealed blade."
+room = "town:dark_alley"
+base_attitude = "aggressive"
+faction = "underworld"
+respawn_secs = 90
+
+[combat]
+max_hp = 45
+attack = 12
+defense = 6
+xp_reward = 35

world/town/objects/gold_coin.toml

@@ -0,0 +1,5 @@
+name = "Gold Coin"
+description = "A single gold coin stamped with the crest of Thornwall."
+room = "town:market"
+kind = "treasure"
+takeable = true

world/town/objects/healing_potion.toml

@@ -2,3 +2,7 @@ name = "Healing Potion"
 description = "A small glass vial filled with a shimmering red liquid."
 room = "town:temple"
 kind = "consumable"
+takeable = true
+
+[stats]
+heal_amount = 30

world/town/objects/iron_shield.toml

@@ -0,0 +1,8 @@
+name = "Iron Shield"
+description = "A dented but serviceable round shield bearing the blacksmith's mark."
+room = "town:forge"
+kind = "armor"
+takeable = true
+
+[stats]
+armor = 4

world/town/objects/rusty_sword.toml

@@ -2,3 +2,7 @@ name = "Rusty Sword"
 description = "A battered iron blade with a cracked leather grip. It's seen better days."
 room = "town:cellar"
 kind = "weapon"
+takeable = true
+
+[stats]
+damage = 5