Add missing resources to CLI, MCP, and n8n surfaces

Audit all three API surfaces against the console GraphQL schema and add
missing resources: asset, audit, datum, dpia, evidence upload, measure,
obligation, processing activity, rights request, snapshot, task, tia,
trust center (with references/files), and vendor management CLI
commands; MCP tools for deletes, rights requests, trust center, vendor
contacts/services, and compliance external URLs; n8n nodes for
obligation, finding, task, evidence, processing activity, dpia, tia,
rights request, snapshot, audit log, access review, organization
context, trust center, and additional control/measure/vendor operations.

Include MCP e2e test infrastructure (testutil MCP client with API key
auth and JSON-RPC session management) and tests covering all new MCP
tools.

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

pkg/cmd/evidence/evidence.go

@@ -19,6 +19,7 @@ import (
 	"go.probo.inc/probo/pkg/cmd/cmdutil"
 	"go.probo.inc/probo/pkg/cmd/evidence/delete"
 	"go.probo.inc/probo/pkg/cmd/evidence/list"
+	"go.probo.inc/probo/pkg/cmd/evidence/upload"
 	"go.probo.inc/probo/pkg/cmd/evidence/view"
 )
 
@@ -31,6 +32,7 @@ func NewCmdEvidence(f *cmdutil.Factory) *cobra.Command {
 	cmd.AddCommand(list.NewCmdList(f))
 	cmd.AddCommand(view.NewCmdView(f))
 	cmd.AddCommand(delete.NewCmdDelete(f))
+	cmd.AddCommand(upload.NewCmdUpload(f))
 
 	return cmd
 }

pkg/cmd/evidence/upload/upload.go

@@ -0,0 +1,119 @@
+// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package upload
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/spf13/cobra"
+	"go.probo.inc/probo/pkg/cli/api"
+	"go.probo.inc/probo/pkg/cmd/cmdutil"
+)
+
+const uploadMutation = `
+mutation($input: UploadMeasureEvidenceInput!) {
+  uploadMeasureEvidence(input: $input) {
+    evidence {
+      id
+      state
+      type
+    }
+  }
+}
+`
+
+type uploadResponse struct {
+	UploadMeasureEvidence struct {
+		Evidence struct {
+			ID    string `json:"id"`
+			State string `json:"state"`
+			Type  string `json:"type"`
+		} `json:"evidence"`
+	} `json:"uploadMeasureEvidence"`
+}
+
+func NewCmdUpload(f *cmdutil.Factory) *cobra.Command {
+	var flagMeasure string
+
+	cmd := &cobra.Command{
+		Use:   "upload <file>",
+		Short: "Upload evidence for a measure",
+		Example: `  # Upload a file as evidence for a measure
+  prb evidence upload ./report.pdf --measure <measure-id>`,
+		Args: cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			filePath := args[0]
+
+			file, err := os.Open(filePath)
+			if err != nil {
+				return fmt.Errorf("cannot open file: %w", err)
+			}
+			defer func() { _ = file.Close() }()
+
+			cfg, err := f.Config()
+			if err != nil {
+				return err
+			}
+
+			host, hc, err := cfg.DefaultHost()
+			if err != nil {
+				return err
+			}
+
+			client := api.NewClient(
+				host,
+				hc.Token,
+				"/api/console/v1/graphql",
+				cfg.HTTPTimeoutDuration(),
+				cmdutil.TokenRefreshOption(cfg, host, hc),
+			)
+
+			variables := map[string]any{
+				"input": map[string]any{
+					"measureId": flagMeasure,
+					"file":      nil,
+				},
+			}
+
+			data, err := client.DoUpload(
+				uploadMutation,
+				variables,
+				"variables.input.file",
+				filepath.Base(filePath),
+				file,
+			)
+			if err != nil {
+				return err
+			}
+
+			var resp uploadResponse
+			if err := json.Unmarshal(data, &resp); err != nil {
+				return fmt.Errorf("cannot parse response: %w", err)
+			}
+
+			_, _ = fmt.Fprintf(f.IOStreams.Out, "Uploaded evidence %s\n", resp.UploadMeasureEvidence.Evidence.ID)
+
+			return nil
+		},
+	}
+
+	cmd.Flags().StringVar(&flagMeasure, "measure", "", "Measure ID (required)")
+	_ = cmd.MarkFlagRequired("measure")
+
+	return cmd
+}