feat(catalog): port oo catalog (scan/merge/match/apply) from legacy branch

The catalog feature (approved ASR-0014) was lost during the GitHub history
rewrite: the merge commit on main is empty and the code only survived on the
old gitea-history branches (no merge base with main). Port catalog/* and the
oo catalog CLI verbatim; drop the library-only applications package whose
Sync() created the 'Write application'/'Apply application'/'Send CV' CRM
task spam (23k+ tasks deleted 2026-08-18).

catalog/scan_projects.go

@@ -0,0 +1,127 @@
+package catalog
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+// ScanProjectsRoot finds git roots under root (max depth) and emits company rows.
+func ScanProjectsRoot(root string, maxDepth int) (*Document, error) {
+	root = filepath.Clean(root)
+	if maxDepth <= 0 {
+		maxDepth = 4
+	}
+	st, err := os.Stat(root)
+	if err != nil {
+		return nil, err
+	}
+	if !st.IsDir() {
+		return nil, fmt.Errorf("not a directory: %s", root)
+	}
+
+	var entries []Entry
+	err = walkGitRoots(root, root, 0, maxDepth, &entries)
+	if err != nil {
+		return nil, err
+	}
+
+	// Also top-level dirs as company stubs (even without git) — coverage 1B.
+	dents, _ := os.ReadDir(root)
+	for _, d := range dents {
+		if !d.IsDir() || strings.HasPrefix(d.Name(), ".") {
+			continue
+		}
+		name := d.Name()
+		skip := map[string]struct{}{
+			"node_modules": {}, "vendor": {}, ".cache": {},
+		}
+		if _, ok := skip[name]; ok {
+			continue
+		}
+		path := filepath.Join(root, name)
+		id := EntryID("company", "", name)
+		role, zone := classifyProjectName(name, "")
+		entries = append(entries, Entry{
+			ID:      id,
+			Kind:    "company",
+			Name:    name,
+			Sources: []string{path},
+			Zone:    zone,
+			Role:    role,
+			Status:  "new",
+			Notes:   "top_level_dir",
+		})
+	}
+
+	return MergeDocs(&Document{Entries: entries}), nil
+}
+
+func walkGitRoots(root, dir string, depth, maxDepth int, out *[]Entry) error {
+	if depth > maxDepth {
+		return nil
+	}
+	// is this a git root?
+	if st, err := os.Stat(filepath.Join(dir, ".git")); err == nil && (st.IsDir() || st.Mode().IsRegular()) {
+		name := filepath.Base(dir)
+		remote := gitRemoteOrigin(dir)
+		role, zone := classifyProjectName(name, remote)
+		*out = append(*out, Entry{
+			ID:      EntryID("company", "", name),
+			Kind:    "company",
+			Name:    name,
+			Sources: []string{dir},
+			Remote:  remote,
+			GitRoot: dir,
+			Zone:    zone,
+			Role:    role,
+			Status:  "new",
+		})
+		return nil // do not descend into nested repos from a git root
+	}
+	dents, err := os.ReadDir(dir)
+	if err != nil {
+		return nil
+	}
+	for _, d := range dents {
+		if !d.IsDir() {
+			continue
+		}
+		name := d.Name()
+		if name == ".git" || name == "node_modules" || name == "vendor" || name == ".venv" || name == "dist" {
+			continue
+		}
+		_ = walkGitRoots(root, filepath.Join(dir, name), depth+1, maxDepth, out)
+	}
+	return nil
+}
+
+func gitRemoteOrigin(dir string) string {
+	cmd := exec.Command("git", "-C", dir, "remote", "get-url", "origin")
+	b, err := cmd.Output()
+	if err != nil {
+		return ""
+	}
+	return strings.TrimSpace(string(b))
+}
+
+func classifyProjectName(name, remote string) (role, zone string) {
+	lower := strings.ToLower(name)
+	remoteL := strings.ToLower(remote)
+	switch {
+	case strings.Contains(lower, "experiment") || strings.HasPrefix(lower, "test"):
+		return "experiment", "cold"
+	case lower == "mama" || lower == "personal" || strings.Contains(lower, "private"):
+		return "personal", "private"
+	case strings.Contains(remoteL, "git.produktor.io") || strings.Contains(remoteL, "github.com/eslider"):
+		return "work", "hot"
+	case strings.Contains(lower, "produktor") || strings.Contains(lower, "eslider") ||
+		strings.Contains(lower, "asesoria") || strings.Contains(lower, "dyvenia") ||
+		strings.Contains(lower, "onlyoffice"):
+		return "work", "warm"
+	default:
+		return "unknown", "warm"
+	}
+}