feat: default baseDir to cwd

[maastrich]

Summary

Globs and relative entry paths in hashup.json now resolve against the current working directory by default, instead of the config file's directory.

Running hashup --cwd ./pkg or cd pkg && hashup both anchor src/**/*.ts at ./pkg/ — which is what most users expect when invoking from a subdirectory.

Behavior matrix

Setting	Resolves against	Unchanged from before?
baseDir not set (default)	cwd	No (was configDir)
Top-level baseDir in config	configDir	Yes
Per-entry entry.baseDir in config	configDir	Yes
--base-dir CLI flag	cwd	Yes

To keep the old config-relative behavior, add "baseDir": ".":

{ "baseDir": ".", "entries": { "app": { "entry": "src/**/*.ts" } } }

Test plan

• New tests/cli/run-modes.test.ts cases:
  • Running with cwd = workDir + -c pkg/hashup.json matches files in workDir/src/, not workDir/pkg/src/
  • baseDir: "." in the config still anchors at configDir, recovering the old default
• vp test — 123/123 passing
• vp check clean

Docs

docs/guide/cli.md — rewrote the resolution-rules block to spell out the new default and the four precedence tiers.

🤖 Generated with Claude Code

[github-actions]

📖 Docs preview: https://maastrich.github.io/hashup/branches/pr-22/