fix(docker): replace deprecated ankane/pgvector with pgvector/pgvector:pg16 (#1684)

[kairavb]

Summary

• The Docker development stack references ankane/pgvector:v0.8.0, which no longer exists on Docker Hub.
• Replace it with the maintained pgvector/pgvector:pg16 image so docker compose up -d works again on a fresh checkout.

Type

• Bug fix (non-breaking change which fixes an issue)

Testing

• Fresh checkout of develop

• docker compose up -d

• Verified all services start successfully

• Tests added or updated

• Tested locally

• ./builder test passes

Checklist

• Commit messages follow conventional commits
• No secrets or credentials included
• Wiki updated (if applicable)
• Breaking changes documented (if applicable)

Linked Issue

Fixes #1684

Summary by CodeRabbit

• Chores
  • Updated the PostgreSQL database service image to support PostgreSQL 16 with pgvector.

[github-actions]

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ℹ️ Recent review info

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Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 528b573f-1c03-4096-a3d9-226f55089b20

📥 Commits

Reviewing files that changed from the base of the PR and between 3526218 and 82c815e.

📒 Files selected for processing (1)

• docker/docker-compose.yml

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📝 Walkthrough

Walkthrough

The Docker Compose PostgreSQL service now references the pgvector/pgvector:pg16 image instead of ankane/pgvector:v0.8.0; other service settings remain unchanged.

Changes

PostgreSQL image update

Layer / File(s)	Summary
Update PostgreSQL container image docker/docker-compose.yml	The postgres service image is changed to pgvector/pgvector:pg16.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Suggested reviewers: jmaionchi, stepmikhaylov, rod-christensen

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main Docker image replacement in this PR.
Linked Issues check	✅ Passed	The change replaces the removed pgvector image exactly as requested and should restore docker compose startup.
Out of Scope Changes check	✅ Passed	The PR is narrowly scoped to the single compose image update with no unrelated changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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