chore: add CD pipeline for nilAI images

[jcabrero]

This PR introduces a CD pipeline to upload the Docker images of nilAI to AWS ECR.

It also fixes an issue where tag was treated as rev in pyproject.toml

[Copilot]

Pull Request Overview

This PR adds a continuous deployment pipeline to build and publish nilAI Docker images to AWS ECR and corrects the version specifier in two pyproject.toml files from tag to rev.

• Switches the nuc-py source in both projects to use rev instead of tag.
• Renames and extends the GitHub Actions workflow with new triggers, permissions, and a deploy-images job.
• Adds a deploy-images job that builds and pushes component images to AWS ECR.

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
nilai-auth/nuc-helpers/pyproject.toml	Update nuc-py source entry to use rev instead of tag
nilai-api/pyproject.toml	Apply the same rev update for the API project
.github/workflows/cicd.yml	Rename workflow, add release trigger, permissions, and a job to deploy images to ECR

Comments suppressed due to low confidence (4)

.github/workflows/cicd.yml:182

• The if condition is not wrapped in ${{ }} and will be treated as a literal string. It should be written as if: ${{ (github.event_name == 'push' && github.ref == 'refs/heads/main') || github.event_name == 'release' }}.

    if: (github.event_name == 'push' && github.ref == 'refs/heads/main') || github.event_name == 'release'

.github/workflows/cicd.yml:217

• Since you're using Buildx and the --push flag, replace docker build with docker buildx build to ensure the push step is supported.

          docker build \

nilai-auth/nuc-helpers/pyproject.toml:24

• The nuc entry is not indented under [tool.uv.sources], which will cause a TOML parse error. It should be indented to match the existing source entries (e.g., two spaces).

nuc = { git = "https://github.com/NillionNetwork/nuc-py.git", rev = "4922b5e9354e611cc31322d681eb29da05be584e" }

nilai-api/pyproject.toml:47

• The nuc entry should be indented under [tool.uv.sources] to align with the other source definitions (e.g., two spaces), otherwise the TOML parser will fail.

nuc = { git = "https://github.com/NillionNetwork/nuc-py.git", rev = "4922b5e9354e611cc31322d681eb29da05be584e" }