docs: regenerate all tutorial/how-to notebooks against the modernized renderer

Re-executed all 24 notebooks (PostgreSQL) against the merged datajoint-python
master (#1533/#1534/#1536), so every embedded dj.Diagram figure now uses the
modernized notation (new tier palette, cardinality-weighted edges, master-part
entity clusters, theme-adaptive prefers-color-scheme SVGs). 24/24 executed
cleanly. Supersedes the stale #248.

Note: connection banners show 2.3.3.dev (docs are built against unreleased
master); check_notebook_versions passes (target 2.3.x).

Author: dimitri-yatsenko

src/how-to/master-part.ipynb

@@ -20,18 +20,18 @@
    "id": "cell-1",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-07-17T00:28:05.062576Z",
-     "iopub.status.busy": "2026-07-17T00:28:05.062348Z",
-     "iopub.status.idle": "2026-07-17T00:28:05.331311Z",
-     "shell.execute_reply": "2026-07-17T00:28:05.330722Z"
+     "iopub.execute_input": "2026-08-13T12:43:56.717384Z",
+     "iopub.status.busy": "2026-08-13T12:43:56.717295Z",
+     "iopub.status.idle": "2026-08-13T12:43:57.054414Z",
+     "shell.execute_reply": "2026-08-13T12:43:57.053816Z"
     }
    },
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[2026-07-17 00:28:05] DataJoint 2.3.1 connected to postgres@postgres:5432\n"
+      "[2026-08-13 12:43:57] DataJoint 2.3.3.dev12+g3f8a79c0f connected to postgres@postgres:5432\n"
      ]
     }
    ],
@@ -56,10 +56,10 @@
    "id": "cell-3",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-07-17T00:28:05.332299Z",
-     "iopub.status.busy": "2026-07-17T00:28:05.332145Z",
-     "iopub.status.idle": "2026-07-17T00:28:05.337309Z",
-     "shell.execute_reply": "2026-07-17T00:28:05.335929Z"
+     "iopub.execute_input": "2026-08-13T12:43:57.055634Z",
+     "iopub.status.busy": "2026-08-13T12:43:57.055414Z",
+     "iopub.status.idle": "2026-08-13T12:43:57.059087Z",
+     "shell.execute_reply": "2026-08-13T12:43:57.058704Z"
     }
    },
    "outputs": [],
@@ -94,10 +94,10 @@
    "id": "cell-4",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-07-17T00:28:05.339311Z",
-     "iopub.status.busy": "2026-07-17T00:28:05.339185Z",
-     "iopub.status.idle": "2026-07-17T00:28:05.352745Z",
-     "shell.execute_reply": "2026-07-17T00:28:05.351901Z"
+     "iopub.execute_input": "2026-08-13T12:43:57.059947Z",
+     "iopub.status.busy": "2026-08-13T12:43:57.059863Z",
+     "iopub.status.idle": "2026-08-13T12:43:57.071195Z",
+     "shell.execute_reply": "2026-08-13T12:43:57.070695Z"
     }
    },
    "outputs": [],
@@ -117,10 +117,10 @@
    "id": "cell-5",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-07-17T00:28:05.355416Z",
-     "iopub.status.busy": "2026-07-17T00:28:05.355274Z",
-     "iopub.status.idle": "2026-07-17T00:28:05.368198Z",
-     "shell.execute_reply": "2026-07-17T00:28:05.367732Z"
+     "iopub.execute_input": "2026-08-13T12:43:57.072035Z",
+     "iopub.status.busy": "2026-08-13T12:43:57.071949Z",
+     "iopub.status.idle": "2026-08-13T12:43:57.081453Z",
+     "shell.execute_reply": "2026-08-13T12:43:57.080894Z"
     }
    },
    "outputs": [
@@ -184,10 +184,10 @@
    "id": "cell-8",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-07-17T00:28:05.369331Z",
-     "iopub.status.busy": "2026-07-17T00:28:05.369227Z",
-     "iopub.status.idle": "2026-07-17T00:28:05.373203Z",
-     "shell.execute_reply": "2026-07-17T00:28:05.372820Z"
+     "iopub.execute_input": "2026-08-13T12:43:57.082353Z",
+     "iopub.status.busy": "2026-08-13T12:43:57.082265Z",
+     "iopub.status.idle": "2026-08-13T12:43:57.086446Z",
+     "shell.execute_reply": "2026-08-13T12:43:57.085928Z"
     }
    },
    "outputs": [],
@@ -219,10 +219,10 @@
    "id": "cell-9",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-07-17T00:28:05.374142Z",
-     "iopub.status.busy": "2026-07-17T00:28:05.374061Z",
-     "iopub.status.idle": "2026-07-17T00:28:05.386032Z",
-     "shell.execute_reply": "2026-07-17T00:28:05.385622Z"
+     "iopub.execute_input": "2026-08-13T12:43:57.087281Z",
+     "iopub.status.busy": "2026-08-13T12:43:57.087203Z",
+     "iopub.status.idle": "2026-08-13T12:43:57.097266Z",
+     "shell.execute_reply": "2026-08-13T12:43:57.096775Z"
     }
    },
    "outputs": [
@@ -256,10 +256,10 @@
    "id": "cell-10",
    "metadata": {
     "execution": {
-     "iopub.execute_input": "2026-07-17T00:28:05.387258Z",
-     "iopub.status.busy": "2026-07-17T00:28:05.387153Z",
-     "iopub.status.idle": "2026-07-17T00:28:05.391314Z",
-     "shell.execute_reply": "2026-07-17T00:28:05.390784Z"
+     "iopub.execute_input": "2026-08-13T12:43:57.098128Z",
+     "iopub.status.busy": "2026-08-13T12:43:57.098046Z",
+     "iopub.status.idle": "2026-08-13T12:43:57.101049Z",
+     "shell.execute_reply": "2026-08-13T12:43:57.100699Z"
     }
    },
    "outputs": [],