feat: Server-side pagination, filtering and search for eval results table (promptfoo#4054)

Author: sklein12

drizzle/0012_late_marten_broadcloak.sql

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+ALTER TABLE `evals` ADD `vars` text;--> statement-breakpoint
+CREATE INDEX `eval_result_eval_id_test_idx_idx` ON `eval_results` (`eval_id`,`test_idx`);

drizzle/0013_previous_dormammu.sql

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+DROP INDEX `eval_result_eval_id_test_idx_idx`;--> statement-breakpoint
+CREATE INDEX `eval_result_test_idx_idx` ON `eval_results` (`test_idx`);--> statement-breakpoint
+CREATE INDEX `eval_result_response_idx` ON `eval_results` (`response`);--> statement-breakpoint
+CREATE INDEX `eval_result_grading_result_reason_idx` ON `eval_results` (json_extract(grading_result, '$.reason'));--> statement-breakpoint
+CREATE INDEX `eval_result_grading_result_comment_idx` ON `eval_results` (json_extract(grading_result, '$.comment'));--> statement-breakpoint
+CREATE INDEX `eval_result_test_case_vars_idx` ON `eval_results` (json_extract(test_case, '$.vars'));--> statement-breakpoint
+CREATE INDEX `eval_result_test_case_metadata_idx` ON `eval_results` (json_extract(metadata, '$'));--> statement-breakpoint
+CREATE INDEX `eval_result_named_scores_idx` ON `eval_results` (json_extract(named_scores, '$'));--> statement-breakpoint
+CREATE INDEX `eval_result_metadata_idx` ON `eval_results` (json_extract(metadata, '$'));

drizzle/0014_lazy_captain_universe.sql

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+DROP INDEX `eval_result_test_idx_idx`;--> statement-breakpoint
+CREATE INDEX `eval_result_test_idx` ON `eval_results` (`test_idx`);