fix: Resolve issue with migrations for docker (#1932)

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## Description
Try database creation if migrations can't run in Cognee

Until we rework the way migrations work in Cognee we can't create the
database first and then run migrations so this is the best we can do
until then

This will unfortunately eat all potential migrations issues, we should
make it work without eating exceptions when we rework migrations

## Acceptance Criteria
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* Key requirements to the new feature or modification;
* Proof that the changes work and meet the requirements;
* Include instructions on how to verify the changes. Describe how to
test it locally;
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## Type of Change
<!-- Please check the relevant option -->
- [ ] Bug fix (non-breaking change that fixes an issue)
- [ ] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update
- [ ] Code refactoring
- [ ] Performance improvement
- [ ] Other (please specify):

## Screenshots/Videos (if applicable)
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## Pre-submission Checklist
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- [ ] **I have tested my changes thoroughly before submitting this PR**
- [ ] **This PR contains minimal changes necessary to address the
issue/feature**
- [ ] My code follows the project's coding standards and style
guidelines
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have added necessary documentation (if applicable)
- [ ] All new and existing tests pass
- [ ] I have searched existing PRs to ensure this change hasn't been
submitted already
- [ ] I have linked any relevant issues in the description
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## DCO Affirmation
I affirm that all code in every commit of this pull request conforms to
the terms of the Topoteretes Developer Certificate of Origin.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Bug Fixes**
* Improved database migration resilience with automatic fallback
initialization when migrations encounter unexpected errors
* Enhanced startup error handling to ensure graceful recovery during
database setup
* Database initialization now attempts automatic recovery before
reporting startup failures
* Added explicit success messaging when migrations complete without
issues

<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

cognee/modules/engine/operations/setup.py

@@ -15,3 +15,9 @@ async def setup():
     """
     await create_relational_db_and_tables()
     await create_pgvector_db_and_tables()
+
+
+if __name__ == "__main__":
+    import asyncio
+
+    asyncio.run(setup())

entrypoint.sh

@@ -20,19 +20,29 @@ echo "HTTP port: $HTTP_PORT"
 # smooth redeployments and container restarts while maintaining data integrity.
 echo "Running database migrations..."
 
+set +e # Disable exit on error to handle specific migration errors
 MIGRATION_OUTPUT=$(alembic upgrade head)
 MIGRATION_EXIT_CODE=$?
+set -e
 
 if [[ $MIGRATION_EXIT_CODE -ne 0 ]]; then
     if [[ "$MIGRATION_OUTPUT" == *"UserAlreadyExists"* ]] || [[ "$MIGRATION_OUTPUT" == *"User default_user@example.com already exists"* ]]; then
         echo "Warning: Default user already exists, continuing startup..."
     else
-        echo "Migration failed with unexpected error."
-        exit 1
-    fi
-fi
+        echo "Migration failed with unexpected error. Trying to run Cognee without migrations."
 
-echo "Database migrations done."
+        echo "Initializing database tables..."
+        python /app/cognee/modules/engine/operations/setup.py
+        INIT_EXIT_CODE=$?
+
+        if [[ $INIT_EXIT_CODE -ne 0 ]]; then
+            echo "Database initialization failed!"
+            exit 1
+        fi
+    fi
+else
+    echo "Database migrations done."
+fi
 
 echo "Starting server..."