Fix git config missing in reset_test.py

[google-labs-jules]

The manual_tests/reset_test.py script was failing because it attempted to create git commits without configuring a git user/email, which causes git to error out in environments where these are not globally configured. Additionally, the test was hanging on the mstl reset prompt because it wasn't running in auto-confirm mode.

This change:

1. Explicitly sets user.email and user.name in the temporary test repository.
2. Passes the --yes flag to the reset command invocation within the test to bypass the confirmation prompt.

---

PR created automatically by Jules for task 11029969726033920909 started by @keiji

[google-labs-jules]

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[github-actions]

Test Coverage Report

Total Coverage: 63.8%

Detailed Report

File	Function	Coverage
mistletoe/cmd/mstl-gh/main.go:15:	main	0.0%
mistletoe/cmd/mstl/main.go:15:	main	0.0%
mistletoe/internal/app/config_search.go:14:	SearchParentConfig	77.3%
mistletoe/internal/app/config_search.go:67:	validateParentConfig	64.0%
mistletoe/internal/app/dependency.go:24:	LoadDependencies	100.0%
mistletoe/internal/app/dependency.go:34:	ParseDependencies	100.0%
mistletoe/internal/app/dependency.go:132:	extractID	100.0%
mistletoe/internal/app/dependency.go:140:	addDependency	100.0%
mistletoe/internal/app/fire.go:16:	handleFire	0.0%
mistletoe/internal/app/fire.go:40:	resolveConfigForFire	0.0%
mistletoe/internal/app/fire.go:47:	fireCommand	96.2%
mistletoe/internal/app/fire.go:100:	processFireRepo	73.7%
mistletoe/internal/app/fire.go:140:	runGitFire	100.0%
mistletoe/internal/app/fire.go:150:	getSafeUsername	41.7%
mistletoe/internal/app/fire.go:172:	sanitizeName	83.3%
mistletoe/internal/app/fire.go:184:	getShortUUID	80.0%
mistletoe/internal/app/flags.go:14:	ParseFlagsFlexible	93.1%
mistletoe/internal/app/flags.go:71:	CheckFlagDuplicates	100.0%
mistletoe/internal/app/flags.go:95:	isBoolFlag	100.0%
mistletoe/internal/app/help.go:7:	handleHelp	100.0%
mistletoe/internal/app/init.go:25:	ensureBranchExistsLocally	27.3%
mistletoe/internal/app/init.go:58:	isDirEmpty	80.0%
mistletoe/internal/app/init.go:76:	checkRootDirectorySafety	93.8%
mistletoe/internal/app/init.go:134:	validateEnvironment	63.5%
mistletoe/internal/app/init.go:229:	PerformInit	75.0%
mistletoe/internal/app/init.go:307:	validateAndPrepareInitDest	77.3%
mistletoe/internal/app/init.go:349:	handleInit	100.0%
mistletoe/internal/app/init.go:353:	initCommand	85.3%
mistletoe/internal/app/pr.go:9:	HandlePr	0.0%
mistletoe/internal/app/pr_body_logic.go:25:	GenerateMistletoeBody	98.3%
mistletoe/internal/app/pr_body_logic.go:231:	GeneratePlaceholderMistletoeBody	0.0%
mistletoe/internal/app/pr_body_logic.go:261:	EmbedMistletoeBody	96.2%
mistletoe/internal/app/pr_body_logic.go:325:	ParseMistletoeBlock	87.2%
mistletoe/internal/app/pr_checkout.go:18:	handlePrCheckout	0.0%
mistletoe/internal/app/pr_checkout.go:24:	prCheckoutCommand	23.6%
mistletoe/internal/app/pr_checkout.go:324:	writeDependencyFile	100.0%
mistletoe/internal/app/pr_common.go:58:	CollectPrStatus	45.7%
mistletoe/internal/app/pr_common.go:267:	getPrDisplayState	42.9%
mistletoe/internal/app/pr_common.go:284:	SortPrs	92.9%
mistletoe/internal/app/pr_common.go:316:	RenderPrStatusTable	78.9%
mistletoe/internal/app/pr_common.go:353:	executePush	0.0%
mistletoe/internal/app/pr_common.go:406:	updatePrDescriptions	0.0%
mistletoe/internal/app/pr_common.go:548:	parsePrURL	81.8%
mistletoe/internal/app/pr_common.go:566:	getRepoName	66.7%
mistletoe/internal/app/pr_common.go:576:	resolveRemoteBranchHash	69.2%
mistletoe/internal/app/pr_common.go:607:	checkGhAvailability	100.0%
mistletoe/internal/app/pr_common.go:622:	verifyGithubRequirements	61.2%
mistletoe/internal/app/pr_common.go:750:	LoadDependencyGraph	92.3%
mistletoe/internal/app/pr_common_helper.go:10:	GetGhUser	0.0%
mistletoe/internal/app/pr_common_helper.go:20:	ValidatePrPermissionAndOverwrite	0.0%
mistletoe/internal/app/pr_common_helper.go:51:	isPrFromConfiguredRepo	100.0%
mistletoe/internal/app/pr_create.go:21:	handlePrCreate	0.0%
mistletoe/internal/app/pr_create.go:28:	prCreateCommand	16.0%
mistletoe/internal/app/pr_create.go:526:	executePrCreationOnly	57.8%
mistletoe/internal/app/pr_input_logic.go:19:	ParsePrTitleBody	93.3%
mistletoe/internal/app/pr_status.go:16:	handlePrStatus	0.0%
mistletoe/internal/app/pr_status.go:22:	prStatusCommand	50.0%
mistletoe/internal/app/pr_update.go:18:	handlePrUpdate	0.0%
mistletoe/internal/app/pr_update.go:24:	prUpdateCommand	27.1%
mistletoe/internal/app/pr_update.go:247:	categorizePrUpdate	100.0%
mistletoe/internal/app/pr_verify.go:13:	VerifyRevisionsUnchanged	87.5%
mistletoe/internal/app/push.go:15:	handlePush	83.3%
mistletoe/internal/app/reset.go:25:	resolveResetTarget	100.0%
mistletoe/internal/app/reset.go:45:	verifyResetTargetWithResolution	85.7%
mistletoe/internal/app/reset.go:82:	handleReset	75.2%
mistletoe/internal/app/run.go:31:	parseArgs	80.0%
mistletoe/internal/app/run.go:44:	getGitPath	66.7%
mistletoe/internal/app/run.go:51:	getGhPath	0.0%
mistletoe/internal/app/run.go:58:	validateGit	100.0%
mistletoe/internal/app/run.go:63:	validateGh	100.0%
mistletoe/internal/app/run.go:68:	validateGhAuth	100.0%
mistletoe/internal/app/run.go:74:	Run	0.0%
mistletoe/internal/app/run.go:82:	RunApp	53.7%
mistletoe/internal/app/snapshot.go:20:	handleSnapshot	83.5%
mistletoe/internal/app/snapshot.go:245:	GenerateSnapshot	0.0%
mistletoe/internal/app/snapshot.go:258:	GenerateSnapshotVerbose	76.9%
mistletoe/internal/app/snapshot.go:345:	GenerateSnapshotFromStatus	89.5%
mistletoe/internal/app/snapshot.go:428:	CalculateSnapshotIdentifier	76.9%
mistletoe/internal/app/status.go:14:	handleStatus	91.5%
mistletoe/internal/app/status_logic.go:40:	ValidateRepositoriesIntegrity	88.9%
mistletoe/internal/app/status_logic.go:80:	CollectStatus	100.0%
mistletoe/internal/app/status_logic.go:110:	getRepoStatus	88.2%
mistletoe/internal/app/status_logic.go:299:	RenderStatusTable	95.0%
mistletoe/internal/app/status_logic.go:357:	ValidateStatusForAction	100.0%
mistletoe/internal/app/switch.go:16:	branchExists	100.0%
mistletoe/internal/app/switch.go:21:	configureUpstreamIfSafe	76.2%
mistletoe/internal/app/switch.go:65:	handleSwitch	82.0%
mistletoe/internal/app/sync.go:16:	handleSync	80.7%
mistletoe/internal/app/utils.go:24:	formatDuration	100.0%
mistletoe/internal/app/utils.go:34:	RunGit	100.0%
mistletoe/internal/app/utils.go:66:	RunGitInteractive	100.0%
mistletoe/internal/app/utils.go:97:	RunGh	73.3%
mistletoe/internal/app/utils.go:128:	RunEditor	76.0%
mistletoe/internal/app/utils.go:176:	ResolveCommonValues	92.1%
mistletoe/internal/app/utils.go:266:	DetermineJobs	100.0%
mistletoe/internal/app/version_common.go:11:	printCommonVersionInfo	0.0%
mistletoe/internal/app/version_gh.go:11:	handleVersionGh	0.0%
mistletoe/internal/app/version_mstl.go:4:	handleVersionMstl	0.0%
mistletoe/internal/config/config.go:64:	ParseConfig	100.0%
mistletoe/internal/config/config.go:84:	validateConfig	95.0%
mistletoe/internal/config/config.go:163:	isValidGitRef	100.0%
mistletoe/internal/config/config.go:173:	GetRepoDirName	100.0%
mistletoe/internal/config/config.go:188:	GetRepoPath	100.0%
mistletoe/internal/config/config.go:193:	LoadConfigData	100.0%
mistletoe/internal/config/config.go:207:	LoadConfigFile	78.6%
mistletoe/internal/ui/ui.go:16:	AskForConfirmation	0.0%
mistletoe/internal/ui/ui.go:37:	AskForConfirmationRequired	0.0%
mistletoe/internal/ui/ui.go:69:	NewSpinner	0.0%
mistletoe/internal/ui/ui.go:78:	Start	0.0%
mistletoe/internal/ui/ui.go:102:	Stop	0.0%