feat(minimax): beta MiniMax provider support (v2.10.2)

[prakersh]

Summary

• add beta MiniMax provider support end-to-end (config, API client/types, store schema, tracker, agent lifecycle, web handlers, dashboard UI)
• add MiniMax support to the mock engine (fixtures, mock server, standalone mockserver cmd) with rotating scenario responses
• add MiniMax env wiring in .env.example and .env.docker.example
• bump VERSION to 2.10.2
• fix Docker workflow so manual dispatch can publish a beta-tag image from PR branches

What was implemented

• Endpoint: GET https://www.minimax.io/v1/api/openplatform/coding_plan/remains
• Auth: Authorization: Bearer <MINIMAX_API_KEY>
• Response parsing aligned to issue sample (model_remains, start_time, end_time, remains_time, current_interval_total_count, current_interval_usage_count)
• Reset-cycle tracking for rolling windows using window boundary changes + usage-drop fallback
• Provider support for provider=minimax and provider=both in current/history/summary/insights/cycles/cycle-overview

Temporary beta Docker image (ready to use)

Published from this PR branch via workflow dispatch:

• Image tag: ghcr.io/onllm-dev/onwatch:v2.10.2-beta.1
• Image digest: ghcr.io/onllm-dev/onwatch@sha256:8147116c1401e2f295e13bbcbb4462fbd93784d920c35649c2079f6f64c2e0bc
• Workflow run: https://github.com/onllm-dev/onWatch/actions/runs/22129006792

Pull and run:

docker pull ghcr.io/onllm-dev/onwatch:v2.10.2-beta.1

docker run --rm -p 9211:9211 \
  -e MINIMAX_API_KEY="<your_key>" \
  ghcr.io/onllm-dev/onwatch:v2.10.2-beta.1

If your org/package visibility is private, authenticate first:

echo "<gh_token_with_read:packages>" | docker login ghcr.io -u <github_user> --password-stdin

Beta validation guide (for testers)

1) Run with a real MiniMax key

export MINIMAX_API_KEY="<your_key>"
go run . --debug

Open http://localhost:9211?provider=minimax.

2) Validate API response manually

curl --location 'https://www.minimax.io/v1/api/openplatform/coding_plan/remains' \
  --header 'Authorization: Bearer <API Key>' \
  --header 'Content-Type: application/json'

Expected fields used by onWatch:

• model_remains[].model_name
• model_remains[].start_time
• model_remains[].end_time
• model_remains[].remains_time
• model_remains[].current_interval_total_count
• model_remains[].current_interval_usage_count

3) Validate rotating mock engine behavior

go run ./internal/testutil/cmd/mockserver --port 19213 --minimax-key minimax_test_e2e_key

Then query:

curl -s "http://localhost:19213/v1/api/openplatform/coding_plan/remains" \
  -H "Authorization: Bearer minimax_test_e2e_key" \
  -H "Content-Type: application/json"

Use /admin/scenario to set rotating responses and verify cycle updates.

4) Linux binary

Build command used:

GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o temp/onwatch-linux-amd64-beta .

5) Docker

Set MINIMAX_API_KEY in .env and run:

docker compose up --build

Test plan

• go test ./internal/api ./internal/store ./internal/tracker ./internal/agent ./internal/web ./internal/testutil ./internal/config
• go test -race ./...
• go vet ./...
• Standalone mock engine MiniMax endpoint tested with rotating responses
• Temporary beta Docker image built and pushed from PR branch

Refs #5