feat(eval): add markdown export for hit rates and average ages

- Introduced functionality to export hit rates and average ages as markdown files.
- Generated `hit_rates.md` and `avg_ages.md` for easier sharing and reporting.

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

aoi_cache_experiment_eval.ipynb

@@ -145,6 +145,17 @@
   {
    "cell_type": "code",
    "execution_count": 6,
+   "id": "58a7865b-6ce6-4960-8dc5-c926d5463949",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "pd.DataFrame(hit_rates, columns=[\"hit_rates\"]).to_markdown('./experiments/hit_rates.md')\n",
+    "pd.DataFrame(avg_ages, columns=[\"avg_ages\"]).to_markdown('./experiments/avg_ages.md')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
    "id": "a92dcf86-d0ae-4f5c-937f-aeac45ac0dea",
    "metadata": {},
    "outputs": [],
@@ -155,7 +166,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 8,
    "id": "0ffb1366-83ea-49ab-83ca-945ed993ef3f",
    "metadata": {},
    "outputs": [
@@ -170,7 +181,7 @@
        " './experiments/No_Refresh_5_0s_ttl/details.csv']"
       ]
      },
-     "execution_count": 7,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -181,7 +192,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 9,
    "id": "6e48f78f-15a3-4788-8ac9-6ad1fabbee26",
    "metadata": {},
    "outputs": [
@@ -346,7 +357,7 @@
        "[99 rows x 6 columns]"
       ]
      },
-     "execution_count": 8,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -357,7 +368,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 10,
    "id": "3e0ddc4a-bede-4921-8ce8-427ef028e19e",
    "metadata": {},
    "outputs": [
@@ -367,7 +378,7 @@
        "43375"
       ]
      },
-     "execution_count": 9,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
     }