Remove preview branch deploy steps from hardware and firmware workflows

The preview branch has been deleted. Artifacts from electrical and
mechanical workflows remain accessible via GitHub Actions. Nightly
firmware link updated to use the GitHub Release.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: SukuWc

.github/workflows/electrical_boards.yml

@@ -68,38 +68,3 @@ jobs:
           Electrical/Design/${{ matrix.board }}/mfg-bot/
         if-no-files-found: warn
 
-  deploy-results:
-    runs-on: ubuntu-latest
-    needs: generate-artifacts
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          ref: preview
-
-      - name: Download reports' artifacts
-        uses: actions/download-artifact@v4
-        with:
-          path: download
-
-      - name: Collecting files
-        run: |
-
-          # Create the temp folder if it doesn't exist
-          mkdir -p Preview/Electrical
-
-          # Loop through each subdirectory in the download folder
-          for subdirectory in download/*; do
-              # Check if it is a directory
-              if [ -d "$subdirectory" ]; then
-                  # Copy the contents of the subdirectory to the temp folder
-                  cp -r "$subdirectory"/* "Preview/Electrical/"
-              fi
-          done
-
-      - name: Commit the files
-        run: |
-          git config --global user.name ${{ github.actor }}
-          git config --global user.email ${{ github.actor }}@users.noreply.github.com
-          git add Preview/*
-          git commit -m "BOT ${{ github.workflow }} ${{ github.sha }}"
-          git push

.github/workflows/mechanical_components.yml

@@ -80,39 +80,3 @@ jobs:
         name: "result_${{ matrix.component }}_${{ env.action_date }}"
         path: temp/*.*
 
-  deploy-results:
-    runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/main'
-    needs: generate-artifacts
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          ref: preview
-
-      - name: Download reports' artifacts
-        uses: actions/download-artifact@v4
-        with:
-          path: download
-
-      - name: Collecting files
-        run: |
-
-          # Create the temp folder if it doesn't exist
-          mkdir -p Preview/Mechanical
-
-          # Loop through each subdirectory in the download folder
-          for subdirectory in download/*; do
-              # Check if it is a directory
-              if [ -d "$subdirectory" ]; then
-                  # Copy the contents of the subdirectory to the temp folder
-                  cp -r "$subdirectory"/* "Preview/Mechanical/"
-              fi
-          done
-
-      - name: Commit the files
-        run: |
-          git config --global user.name ${{ github.actor }}
-          git config --global user.email ${{ github.actor }}@users.noreply.github.com
-          git add Preview/*
-          git commit -m "BOT ${{ github.workflow }} ${{ github.sha }}"
-          git push

README.md

@@ -24,7 +24,7 @@ You can find more info on the [website](https://intech.studio/shop/knot) or in t
 
 The nightly firmware is an early release version of the stable release. As it is an early version, some issues could still persist. In the case of issues, please denote the usage of a nightly firmware in the issue report.
 
-[Nightly Release](https://github.com/intechstudio/knot/raw/preview/Preview/Firmware/knot_esp32_nightly.uf2)
+[Nightly Release](https://github.com/intechstudio/knot/releases/tag/nightly)
 
 ### Updating the firmware