Fix all ESLint errors: remove unused imports, replace any types

- Remove ~60 unused imports and variables across 88 files
- Replace ~80 `any` type annotations with proper types (unknown,
  Record<string, unknown>, or specific types)
- Prefix unused callback args with underscore
- Fix unescaped JSX entities
- Lint now passes cleanly (0 errors, 2 intentional img warnings)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/lib/db/schema/system.ts

@@ -8,7 +8,6 @@ import {
   jsonb,
   index,
   uniqueIndex,
-  primaryKey,
 } from 'drizzle-orm/pg-core';
 import { ports } from './ports';
 import { clients } from './clients';
@@ -29,7 +28,7 @@ export const auditLogs = pgTable(
     userAgent: text('user_agent'),
     revertedBy: text('reverted_by'), // user ID if this change was reverted
     revertedAt: timestamp('reverted_at', { withTimezone: true }),
-    revertOf: text('revert_of').references((): any => auditLogs.id),
+    revertOf: text('revert_of').references((): ReturnType<typeof text> => auditLogs.id),
     metadata: jsonb('metadata').default({}),
     createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
   },