fix: comprehensive PostgreSQL/SQLite compatibility fixes

Critical fixes for database compatibility issues:

INSERT operations:
- Fix all INSERT queries to use .returning('id')
- Handle both PostgreSQL (returns objects) and SQLite (returns IDs)
- Fixed in: events.js, adminArchives.js, adminEvents-enhanced.js, create-test-event.js

Date operations:
- Replace SQLite-specific db.raw("datetime('now', '+30 days')")
- Use JavaScript Date objects for cross-database compatibility
- Fixed in: adminArchives.js

Database utilities:
- Add dbCompat.js utility for handling database differences
- Provides consistent API for inserts, dates, booleans, and DB-specific operations
- Centralized database compatibility logic

Migration:
- Add migration 023 documenting PostgreSQL compatibility requirements
- Ensures future developers are aware of compatibility needs

This resolves all 'not iterable' errors and ensures the application
works correctly with both PostgreSQL (production) and SQLite (development).

.gitea/workflows/mirror-github-archive.yml

@@ -1,39 +0,0 @@
-name: Mirror to GitHub (Archive Method)
-
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  mirror:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-
-      - name: Mirror using git archive
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          # Configure git
-          git config --global user.name "Gitea Mirror Bot"
-          git config --global user.email "bot@noreply.gitea.local"
-          
-          # Copy gitattributes
-          cp .gitattributes-github .gitattributes
-          
-          # Create archive excluding files
-          git archive --format=tar HEAD | tar -x -C /tmp/export
-          
-          # Initialize new repo in export directory
-          cd /tmp/export
-          git init
-          git add .
-          git commit -m "Mirror from Gitea: $(date '+%Y-%m-%d %H:%M:%S')"
-          
-          # Push to GitHub
-          git remote add origin https://x-access-token:${GITHUB_TOKEN}@github.com/YOUR_GITHUB_USERNAME/YOUR_REPO_NAME.git
-          git push -f origin main

.gitea/workflows/mirror-github-rsync.yml

@@ -1,42 +0,0 @@
-name: Mirror to GitHub (Rsync Method)
-
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  mirror:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-
-      - name: Prepare mirror directory
-        run: |
-          # Create mirror directory
-          mkdir -p /tmp/github-mirror
-          
-          # Use rsync to copy files, excluding sensitive ones
-          rsync -av --exclude-from='.github-mirror-exclude' ./ /tmp/github-mirror/
-
-      - name: Push to GitHub
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          cd /tmp/github-mirror
-          
-          # Initialize git repo
-          git init
-          git config user.name "Gitea Mirror Bot"
-          git config user.email "bot@noreply.gitea.local"
-          
-          # Add all files and commit
-          git add .
-          git commit -m "Mirror from Gitea: $(git --git-dir=$GITHUB_WORKSPACE/.git log -1 --format='%h %s')"
-          
-          # Push to GitHub
-          git remote add origin https://x-access-token:${GITHUB_TOKEN}@github.com/YOUR_GITHUB_USERNAME/YOUR_REPO_NAME.git
-          git push -f origin main

.gitea/workflows/mirror-to-github.yml

@@ -49,7 +49,7 @@ jobs:
 
       - name: Push to GitHub
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUBTOKEN }}
+          GITHUBTOKEN: ${{ secrets.GITHUBTOKEN }}
         run: |
           # Add GitHub remote
           git remote add github https://x-access-token:${GITHUBTOKEN}@github.com/the-luap/picpeak.git