feat: L0b bootstrap scripts + L1 Go CLI structure

L0b (factory bootstrap):
- bootstrap.ps1 (Windows): pre-checks, interactive config, clone .factory, home.toml
- bootstrap.sh (Linux/Mac): same functionality for bash
- Idempotent re-run with home.toml verification

L1 (Go CLI):
- factory.yaml: manifest schema with components, deps, health-checks
- cmd/factory: Cobra CLI (install/update/status/diagnose)
- pkg/config: home.toml reader
- pkg/manifest: factory.yaml parser + topological sort
- pkg/health: health-check logic (file/dir/mcp_tool/command)

Scripts:
- build.sh: cross-compile for linux/win/darwin × amd64/arm64
- build.ps1: PowerShell cross-compile

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

pkg/manifest/manifest.go

@@ -0,0 +1,123 @@
+package manifest
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/goccy/go-yaml"
+)
+
+type GitSource struct {
+	Type   string `yaml:"type"`
+	URL    string `yaml:"url"`
+	Branch string `yaml:"branch"`
+}
+
+type PostInstall struct {
+	Shell      string `yaml:"shell"`
+	Script     string `yaml:"script"`
+	ShellAlt   string `yaml:"shell_alt"`
+	ScriptAlt  string `yaml:"script_alt"`
+}
+
+type HealthCheck struct {
+	Type   string `yaml:"type"`
+	Path   string `yaml:"path"`
+	Tool   string `yaml:"tool"`
+	Command string `yaml:"command"`
+}
+
+type Component struct {
+	Name        string       `yaml:"name"`
+	DisplayName string       `yaml:"display_name"`
+	Source      *GitSource   `yaml:"source"`
+	Target      string       `yaml:"target"`
+	Deps        []string     `yaml:"deps"`
+	SetupSkill  string       `yaml:"setup_skill"`
+	PostInstall *PostInstall `yaml:"post_install"`
+	HealthCheck *HealthCheck `yaml:"health_check"`
+	Optional    bool         `yaml:"optional"`
+	Clients     []string     `yaml:"clients"`
+}
+
+type Manifest struct {
+	Version   string       `yaml:"version"`
+	GitHost   string       `yaml:"git_host"`
+	GitOrg    string       `yaml:"git_org"`
+	Components []Component `yaml:"components"`
+}
+
+func Load(path string, vars map[string]string) (*Manifest, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read manifest: %w", err)
+	}
+
+	// Substitute variables
+	content := string(data)
+	for k, v := range vars {
+		content = strings.ReplaceAll(content, "{"+k+"}", v)
+	}
+
+	var m Manifest
+	if err := yaml.Unmarshal([]byte(content), &m); err != nil {
+		return nil, fmt.Errorf("failed to parse manifest: %w", err)
+	}
+
+	// Set defaults
+	if m.GitHost == "" {
+		m.GitHost = "https://github.com"
+	}
+
+	return &m, nil
+}
+
+func (m *Manifest) GetComponent(name string) (*Component, bool) {
+	for i := range m.Components {
+		if m.Components[i].Name == name {
+			return &m.Components[i], true
+		}
+	}
+	return nil, false
+}
+
+func (m *Manifest) GetDependencyOrder() []string {
+	// Topological sort for component installation order
+	visited := make(map[string]bool)
+	order := []string{}
+
+	var visit func(string)
+	visit = func(name string) {
+		if visited[name] {
+			return
+		}
+		visited[name] = true
+
+		c, ok := m.GetComponent(name)
+		if ok {
+			for _, dep := range c.Deps {
+				visit(dep)
+			}
+		}
+		order = append(order, name)
+	}
+
+	for _, c := range m.Components {
+		visit(c.Name)
+	}
+
+	return order
+}
+
+func (c *Component) IsApplicable(client string) bool {
+	if len(c.Clients) == 0 {
+		return true
+	}
+	for _, cl := range c.Clients {
+		if cl == client {
+			return true
+		}
+	}
+	return false
+}