ResolveSeedDir, ResolveProjectSeedDir, and ResolveProjectRoot read
the v0.3 environment variables (CTASK_SEED_DIR,
CTASK_SEED_PROJECT_DIR, CTASK_PROJECT_ROOT) and fall back to
platform defaults under %APPDATA%\ctask or ~/.config/ctask. The
expandPath helper handles tilde expansion + abs-path resolution
once for all resolvers.
Go module, cobra root command, config resolution (CTASK_ROOT, CTASK_AGENT, EnvVars) with tests.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>