update examples for different runtimes

[github-actions[bot]]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	64.51%	689 / 1068
🔵	Statements	64.51%	689 / 1068
🔵	Functions	81.42%	57 / 70
🔵	Branches	80%	120 / 150

File Coverage

File	Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
Changed Files
examples/cloudflare/src/index.ts	0%	0%	0%	0%	1-52
examples/node/src/app.ts	0%	0%	0%	0%	1-16

Generated in workflow #133

[github-actions[bot]]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	66.47%	706 / 1062
🔵	Statements	66.47%	706 / 1062
🔵	Functions	84.05%	58 / 69
🔵	Branches	77.5%	124 / 160

File Coverage

File	Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
Changed Files
examples/node/src/app.ts	0%	0%	0%	0%	1-34
src/context/runtime.ts	75%	45.45%	100%	75%	23-24, 27-28, 31-32, 35-36, 45, 47-50

Generated in workflow #118