Initial commit: full Phases 1-6 implementation

Post-repair hardware validation pipeline for Proxmox cluster hosts.
Go orchestrator + in-image agent + mkosi live image + bundled dnsmasq
PXE + SQLite + HTMX/SSE UI + notify registry + janitor + full docs.

internal/store/hosts.go

@@ -0,0 +1,98 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"strings"
+
+	"vetting/internal/model"
+)
+
+type Hosts struct {
+	DB *sql.DB
+}
+
+var ErrNotFound = errors.New("not found")
+
+func (h *Hosts) Create(ctx context.Context, in model.Host) (int64, error) {
+	in.MAC = normalizeMAC(in.MAC)
+	res, err := h.DB.ExecContext(ctx, `
+		INSERT INTO hosts(name, mac, wol_broadcast_ip, wol_port, expected_spec_yaml, pdu_config_json, ipmi_config_json, notes)
+		VALUES(?,?,?,?,?,?,?,?)
+	`, in.Name, in.MAC, in.WoLBroadcastIP, in.WoLPort, in.ExpectedSpecYAML, nullIfEmpty(in.PDUConfigJSON), nullIfEmpty(in.IPMIConfigJSON), in.Notes)
+	if err != nil {
+		return 0, fmt.Errorf("insert host: %w", err)
+	}
+	return res.LastInsertId()
+}
+
+func (h *Hosts) List(ctx context.Context) ([]model.Host, error) {
+	rows, err := h.DB.QueryContext(ctx, `
+		SELECT id, name, mac, wol_broadcast_ip, wol_port, expected_spec_yaml,
+		       COALESCE(pdu_config_json,''), COALESCE(ipmi_config_json,''),
+		       notes, created_at, updated_at
+		FROM hosts
+		ORDER BY name COLLATE NOCASE
+	`)
+	if err != nil {
+		return nil, fmt.Errorf("list hosts: %w", err)
+	}
+	defer rows.Close()
+
+	var out []model.Host
+	for rows.Next() {
+		var host model.Host
+		if err := rows.Scan(&host.ID, &host.Name, &host.MAC, &host.WoLBroadcastIP, &host.WoLPort,
+			&host.ExpectedSpecYAML, &host.PDUConfigJSON, &host.IPMIConfigJSON,
+			&host.Notes, &host.CreatedAt, &host.UpdatedAt); err != nil {
+			return nil, fmt.Errorf("scan host: %w", err)
+		}
+		out = append(out, host)
+	}
+	return out, rows.Err()
+}
+
+func (h *Hosts) Get(ctx context.Context, id int64) (*model.Host, error) {
+	row := h.DB.QueryRowContext(ctx, `
+		SELECT id, name, mac, wol_broadcast_ip, wol_port, expected_spec_yaml,
+		       COALESCE(pdu_config_json,''), COALESCE(ipmi_config_json,''),
+		       notes, created_at, updated_at
+		FROM hosts WHERE id = ?
+	`, id)
+	var host model.Host
+	err := row.Scan(&host.ID, &host.Name, &host.MAC, &host.WoLBroadcastIP, &host.WoLPort,
+		&host.ExpectedSpecYAML, &host.PDUConfigJSON, &host.IPMIConfigJSON,
+		&host.Notes, &host.CreatedAt, &host.UpdatedAt)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, fmt.Errorf("get host: %w", err)
+	}
+	return &host, nil
+}
+
+func (h *Hosts) Delete(ctx context.Context, id int64) error {
+	res, err := h.DB.ExecContext(ctx, `DELETE FROM hosts WHERE id = ?`, id)
+	if err != nil {
+		return fmt.Errorf("delete host: %w", err)
+	}
+	n, _ := res.RowsAffected()
+	if n == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+func normalizeMAC(m string) string {
+	return strings.ToLower(strings.TrimSpace(m))
+}
+
+func nullIfEmpty(s string) any {
+	if s == "" {
+		return nil
+	}
+	return s
+}