Use official ollama npm client for all LLM calls

Replaces hand-rolled fetch to /api/chat with the ollama@0.6.3 package.

The package supplies proper Accept/Content-Type/User-Agent headers and

auto-handles the Ollama protocol, fixing the CDN 403s Node's bare fetch

gets against ollama.com during filing.

Both organize and search LLM ranking now route through controller/ollama.js.

Signed-off-by: William Mantly <wmantly@gmail.com>

package-lock.json

@@ -20,6 +20,7 @@
         "lru-native2": "^1.2.6",
         "moment": "^2.30.1",
         "mustache": "^4.2.0",
+        "ollama": "^0.6.3",
         "p2psub": "^0.1.9",
         "sequelize": "^6.35.2",
         "sequelize-cli": "^6.6.2",
@@ -2933,6 +2934,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/ollama": {
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/ollama/-/ollama-0.6.3.tgz",
+      "integrity": "sha512-KEWEhIqE5wtfzEIZbDCLH51VFZ6Z3ZSa6sIOg/E/tBV8S51flyqBOXi+bRxlOYKDf8i327zG9eSTb8IJxvm3Zg==",
+      "license": "MIT",
+      "dependencies": {
+        "whatwg-fetch": "^3.6.20"
+      }
+    },
     "node_modules/on-finished": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
@@ -4411,6 +4421,12 @@
         "node": ">=12"
       }
     },
+    "node_modules/whatwg-fetch": {
+      "version": "3.6.20",
+      "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-3.6.20.tgz",
+      "integrity": "sha512-EqhiFU6daOA8kpjOWTL0olhVOF3i7OrFzSYiGsEMB8GcXS+RrzauAERX65xMeNWVqxA6HXH2m69Z9LaKKdisfg==",
+      "license": "MIT"
+    },
     "node_modules/whatwg-url": {
       "version": "14.2.0",
       "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-14.2.0.tgz",