ci: consolidate Dependabot config to stop mass PR openings

[Copilot]

• Consolidate dependabot.yml: removed 7 per-directory npm entries, single root-level entry with groups
• Set open-pull-requests-limit to 1 and schedule to monthly for both ecosystems
• Add release note for the configuration change
• Fix release note to use correct YAML front matter format with --- delimiters

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[BENZOOgataga]

@copilot modify pull request limit to 1 every month

[Copilot]

@copilot modify pull request limit to 1 every month

Done in d4a992b — both ecosystems (npm and github-actions) are now set to interval: "monthly" with open-pull-requests-limit: 1.

[Copilot]

Pull request overview

This PR consolidates the Dependabot configuration to reduce the volume of dependency update PRs from up to 70 per weekly run to at most 2 per month (one for npm, one for GitHub Actions).

Changes:

• Removed 6 redundant per-directory npm ecosystem entries, keeping a single root-level entry that leverages pnpm workspace traversal
• Added groups with wildcard patterns to both npm and github-actions entries, batching all updates into a single PR per ecosystem
• Changed schedule from weekly to monthly and reduced open-pull-requests-limit to 1 for both ecosystems

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
.github/dependabot.yml	Consolidated 7 npm entries into 1 root entry, added grouping, changed to monthly schedule with limit of 1 PR per ecosystem
.releases/unreleased/20260309103504-consolidate-dependabot-config.md	Added release note for the configuration change

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[Copilot]

The release note file uses a different format from the existing release notes. The other files in .releases/unreleased/ use YAML front matter with --- delimiters (e.g., ---\ntype: patch\narea: ci\nsummary: ...\n---), but this file omits the --- delimiters entirely. This will likely break any tooling that parses these files expecting YAML front matter format.

[BENZOOgataga]

@copilot apply changes based on the comments in this thread

[Copilot]

@copilot apply changes based on the comments in this thread

Fixed in e755f23 — added the missing --- delimiters so the release note now uses the correct YAML front matter format.