feat: drop estimated_battery_min column — Phase 1 migration (Tasks 1.1-1.3)

drizzle/0024_violet_psynapse.sql

@@ -0,0 +1 @@
+ALTER TABLE "performance_entries" DROP COLUMN "estimated_battery_min";

drizzle/meta/_journal.json

@@ -169,6 +169,13 @@
       "when": 1778336095477,
       "tag": "0023_married_avengers",
       "breakpoints": true
+    },
+    {
+      "idx": 24,
+      "version": "7",
+      "when": 1778359948438,
+      "tag": "0024_violet_psynapse",
+      "breakpoints": true
     }
   ]
 }

lib/db/schema/performanceEntries.ts

@@ -79,8 +79,6 @@ export const performanceEntries = pgTable(
     settingsJson: jsonb("settings_json").$type<GameSettingCategory[]>(),
     userNotes: text("user_notes"),
 
-    // Battery estimate (minutes) — @deprecated: auto-computed from tdpWatts + hardware.wattHours
-    estimatedBatteryMin: integer("estimated_battery_min"),
 
     // TDP tracking (watts) — user-set TDP cap during benchmark
     tdpWatts: real("tdp_watts"),