Remove migrations from image entrypoints and fix default random model field values generation

[dodo920306]

Removed python manage.py makemigrations from Docker entrypoint to prevent inconsistent or duplicate migration generation during container startup.

Previously, every time a new container was built, makemigrations regenerated the migration files from scratch. If the previous container’s migrations were not persisted, Django would recreate 0001_initial.py, ignoring actual DB schema state. This caused issues when existing tables had column changes: Django would not detect diffs and silently skip necessary migrations, leaving the schema out of sync.

Thus, migrations should be included in the version control and so that they can be applied but not regenerated in the runtime (inside containers).

Note: Ensure all future model changes include corresponding migration files.

[dodo920306]

Please notice that this PR now also rewrites the logix to generate a random name for models.
This prevents the model name field default values from being generated only when every time a migration is made.
Please review it to make sure that the solution is actually wanted.

[Copilot]

Pull Request Overview

This PR removes dynamic migration generation from container startup and fixes default model field values by moving the random name generation logic into the model save methods. It ensures that migration files are maintained in version control while updating the name fields for Agent, Network, and Node models.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/api-engine/api/models.py	Removed default random name generation from field declarations; added save methods to generate names when missing.
src/api-engine/api/migrations/0002_userprofile_created_at_alter_agent_name_and_more.py	Updated migration to remove default values and apply unique and blank attributes.
src/api-engine/api/migrations/0001_initial.py	Initial migration remains with typos in default values (immutable), reflecting historical defaults.
build_image/dockerhub/latest/common/api-engine/entrypoint.sh	Removed makemigrations command to prevent runtime migration generation.
build_image/docker/common/api-engine/entrypoint.sh	Removed makemigrations command similar to the other entrypoint.

Comments suppressed due to low confidence (4)

src/api-engine/api/models.py:170

• Ensure that random_name('agent') generates a truly unique value to satisfy the new unique constraint on the Agent name field when a new instance is saved.

        unique=True,

src/api-engine/api/models.py:312

• Verify that random_name('network') produces unique values to comply with the unique constraint for the Network model and prevent potential database errors.

        unique=True,

src/api-engine/api/models.py:576

• Confirm that random_name(self.type) reliably returns a valid, unique name for Node instances to adhere to the unique constraint on the name field.

        if not self.name:

src/api-engine/api/migrations/0001_initial.py:110

• The default value in the initial migration contains a typo ('netowrk'); note that initial migrations are immutable, but verify if this is acceptable for legacy data.

                ('name', models.CharField(default='netowrk-30858a0cf2f54ab7a5e16a94958758b5', help_text='network name, can be generated automatically.', max_length=64)),

[YoungHypo]

very valuable pr. LGTM. @yeasy @dodo920306