Filter Token Accounts by Account Type

[stefangutica]

Reasoning

• token holders accounts endpoint returned all holders, normal wallets holders + smart contracts holders

Proposed Changes

• add filtering option depending on account type

How to test

• when filtering by an account type, only that specific account type should be returned as a response

[github-actions]

k6 load testing comparison.
Base Commit Hash: 370d50f
Target Commit Hash: 7ab3cae

Metric	Base				Target				Diff
	Avg	Max	90	95	Avg	Max	90	95	Avg	Max	90	95
Transactions	292.22	12283.67	329.89	431.67	53.05	1153.33	50.68	57.02	-81.84% ✅	-90.61% ✅	-84.64% ✅	-86.79% ✅
Mex	59.70	4743.76	113.32	138.25	54.41	423.24	79.96	219.28	-8.85% ✅	-91.08% ✅	-29.44% ✅	+58.62% 🔴
Nodes	384.85	16067.98	354.97	422.08	881.12	28276.84	98.41	168.69	+128.95% 🔴	+75.98% 🔴	-72.28% ✅	-60.03% ✅
Accounts	63.13	6465.32	104.13	152.07	58.14	755.44	89.55	223.29	-7.90% ✅	-88.32% ✅	-14.00% ✅	+46.83% 🔴
Tokens	60.01	4514.90	110.68	136.76	54.63	453.01	80.19	219.11	-8.97% ✅	-89.97% ✅	-27.55% ✅	+60.22% 🔴
Pool	60.55	7045.53	108.36	129.58	54.63	444.01	79.77	219.49	-9.78% ✅	-93.70% ✅	-26.38% ✅	+69.38% 🔴
Blocks	80.72	7545.80	138.21	228.86	64.59	593.89	105.49	274.69	-19.99% ✅	-92.13% ✅	-23.67% ✅	+20.02% 🔴
Test Run Duration	60010.38				60001.71

Legend: Avg - Average Response Time, Max - Maximum Response Time, 90 - 90th Percentile, 95 - 95th Percentile
All times are in milliseconds.