chore(lightspeed): remove unused LangChain dependencies

workspaces/lightspeed/.changeset/remove-unused-langchain.md

@@ -0,0 +1,5 @@
+---
+'@red-hat-developer-hub/backstage-plugin-lightspeed-backend': patch
+---
+
+Removed unused `@langchain/core` and `@langchain/openai` dependencies left over after the backend switched from an in-process LangChain client to the Lightspeed Core HTTP proxy.

workspaces/lightspeed/package.json

@@ -75,8 +75,7 @@
     "refractor@npm:3.6.0/prismjs": "^1.30.0",
     "@backstage/frontend-plugin-api": "0.15.1",
     "infinispan": "0.13.0",
-    "@protobufjs/inquire": "1.1.0",
-    "langsmith": "^0.6.0"
+    "@protobufjs/inquire": "1.1.0"
   },
   "prettier": "@spotify/prettier-config",
   "lint-staged": {

workspaces/lightspeed/plugins/lightspeed-backend/package.json

@@ -48,8 +48,6 @@
     "@backstage/errors": "^1.2.7",
     "@backstage/plugin-permission-common": "^0.9.7",
     "@backstage/plugin-permission-node": "^0.10.11",
-    "@langchain/core": "^0.3.80",
-    "@langchain/openai": "^0.6.0",
     "@red-hat-developer-hub/backstage-plugin-lightspeed-common": "workspace:^",
     "express": "^4.21.1",
     "form-data": "^4.0.5",
@@ -74,9 +72,6 @@
     "prettier": "3.8.3",
     "supertest": "6.3.4"
   },
-  "resolutions": {
-    "langsmith": "^0.6.0"
-  },
   "files": [
     "dist",
     "config.d.ts",

workspaces/lightspeed/yarn.lock

@@ -4607,13 +4607,6 @@ __metadata:
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@@ -6934,39 +6927,6 @@ __metadata:
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-  resolution: "@langchain/core@npm:0.3.80"
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-    zod: "npm:^3.25.32"
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   resolution: "@leichtgewicht/ip-codec@npm:2.0.5"
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     "@ianvs/prettier-plugin-sort-imports": "npm:^4.4.0"
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-    "@langchain/openai": "npm:^0.6.0"
     "@red-hat-developer-hub/backstage-plugin-lightspeed-common": "workspace:^"
     "@spotify/prettier-config": "npm:^15.0.0"
     "@types/express": "npm:4.17.25"
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   languageName: node
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+"camelcase@npm:^6.3.0":
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@@ -26191,32 +26126,6 @@ __metadata:
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