feat: support file protocol for options.manifestUrl

[ayushmanchhabra]

• chore: setup linting

[github-actions]

📊 Coverage Report — ubuntu-24.04

File	Line %	Branch %	Funcs %	Uncovered Lines
src
decompress.js	42.31	66.67	33.33	20 36-42 53-104
ffmpeg.js	44.74	100.00	0.00	18-38
main.js	51.48	22.58	100.00	56 60-61 64-65 68-69 72-73 76-77 80-81 88-89 92-93 96-97 100-101 104-105 108-109 115-116 139-143 167-240 243-267
node.js	31.25	100.00	0.00	16-48
nw.js	100.00	50.00	100.00
request.js	91.67	93.33	77.78	28-32 67-68
verify.js	81.03	83.33	100.00	43-53
all files	60.33	52.46	64.71

[github-actions]

📊 Coverage Report — macos-15

File	Line %	Branch %	Funcs %	Uncovered Lines
src
decompress.js	46.15	75.00	40.00	36-42 55-103
ffmpeg.js	44.74	100.00	0.00	18-38
main.js	51.48	22.58	100.00	56 60-61 64-65 68-69 72-73 76-77 80-81 88-89 92-93 96-97 100-101 104-105 108-109 115-116 139-143 167-240 243-267
node.js	31.25	100.00	0.00	16-48
nw.js	100.00	50.00	100.00
request.js	91.67	93.33	77.78	28-32 67-68
verify.js	81.03	83.33	100.00	43-53
all files	60.94	53.23	63.16

[github-actions]

📊 Coverage Report — windows-2025

File	Line %	Branch %	Funcs %	Uncovered Lines
src
decompress.js	46.15	75.00	40.00	36-42 55-103
ffmpeg.js	44.74	100.00	0.00	18-38
main.js	51.48	22.58	100.00	56 60-61 64-65 68-69 72-73 76-77 80-81 88-89 92-93 96-97 100-101 104-105 108-109 115-116 139-143 167-240 243-267
node.js	31.25	100.00	0.00	16-48
nw.js	100.00	50.00	100.00
request.js	91.67	93.33	77.78	28-32 67-68
verify.js	81.03	83.33	100.00	43-53
all files	60.94	53.23	63.16