chore: remove codespell CI workflow and config, keep typo fixes only

Made-with: Cursor

.github/workflows/codespell.yml

@@ -1,23 +0,0 @@
-# Codespell configuration is within pyproject.toml
----
-name: Codespell
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-
-permissions:
-  contents: read
-
-jobs:
-  codespell:
-    name: Check for spelling errors
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Codespell
-        uses: codespell-project/actions-codespell@v2

pyproject.toml

@@ -130,13 +130,6 @@ ignore = ["E501"]
 asyncio_mode = "auto"
 testpaths = ["tests"]
 
-[tool.codespell]
-# Ref: https://github.com/codespell-project/codespell#using-a-config-file
-skip = '.git*'
-check-hidden = true
-# ignore-regex = ''
-# ignore-words-list = ''
-
 [tool.coverage.run]
 source = ["nanobot"]
 omit = ["tests/*", "**/tests/*"]