feat(financial-reports): add charts, trends and forecasts overview tab

Adds a new "نمای کلی و نمودارها" tab to the financial reports page with
KPI cards, daily/weekly income-trend and monthly breakdown charts, a
payment-status doughnut, a due-date cash-flow forecast chart, and full
per-class income and upcoming-payments tables — backed by chart.js /
vue-chartjs and the new /financial-reports/admin/analytics endpoint.

package-lock.json

@@ -11,6 +11,7 @@
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         "@primevue/themes": "4.0.7",
         "axios": "^1.19.0",
+        "chart.js": "^4.5.1",
         "filepond": "^4.32.12",
         "filepond-plugin-file-validate-type": "^1.2.9",
         "filepond-plugin-image-preview": "^4.6.12",
@@ -24,6 +25,7 @@
         "sass": "^1.102.0",
         "vee-validate": "^4.15.1",
         "vue": "^3.5.40",
+        "vue-chartjs": "^5.3.4",
         "vue-filepond": "^8.0.0",
         "vue-i18n": "^11.4.8",
         "vue-router": "^5.2.0",
@@ -280,6 +282,12 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
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+    "node_modules/@kurkle/color": {
+      "version": "0.3.4",
+      "resolved": "https://registry.npmjs.org/@kurkle/color/-/color-0.3.4.tgz",
+      "integrity": "sha512-M5UknZPHRu3DEDWoipU6sE8PdkZ6Z/S+v4dD+Ke8IaNlpdSQah50lz1KtcFBa2vsdOnwbbnxJwVM4wty6udA5w==",
+      "license": "MIT"
+    },
     "node_modules/@oxc-project/types": {
       "version": "0.143.0",
       "resolved": "https://registry.npmjs.org/@oxc-project/types/-/types-0.143.0.tgz",
@@ -1277,6 +1285,18 @@
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       "license": "MIT"
     },
+    "node_modules/chart.js": {
+      "version": "4.5.1",
+      "resolved": "https://registry.npmjs.org/chart.js/-/chart.js-4.5.1.tgz",
+      "integrity": "sha512-GIjfiT9dbmHRiYi6Nl2yFCq7kkwdkp1W/lp2J99rX0yo9tgJGn3lKQATztIjb5tVtevcBtIdICNWqlq5+E8/Pw==",
+      "license": "MIT",
+      "dependencies": {
+        "@kurkle/color": "^0.3.0"
+      },
+      "engines": {
+        "pnpm": ">=8"
+      }
+    },
     "node_modules/chokidar": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-5.0.0.tgz",
@@ -3265,6 +3285,16 @@
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     },
+    "node_modules/vue-chartjs": {
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+      "resolved": "https://registry.npmjs.org/vue-chartjs/-/vue-chartjs-5.3.4.tgz",
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+      "license": "MIT",
+      "peerDependencies": {
+        "chart.js": "^4.1.1",
+        "vue": "^3.0.0-0 || ^2.7.0"
+      }
+    },
     "node_modules/vue-filepond": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/vue-filepond/-/vue-filepond-8.0.0.tgz",