Pythons/angular 21 upgrade

[so-kaushal]

https://scheduleonce.atlassian.net/browse/ONCEHUB-112987
Upgrade knowledgeowl-angular library from Angular 20 to Angular 21

This pull request introduces a major update to the project, primarily focused on upgrading Angular and related dependencies to version 21, updating Node.js support to 24.13.0, and modernizing the ESLint configuration. It also removes the legacy .eslintrc.json in favor of a new eslint.config.js and updates the CI/CD workflows to use the latest tooling. The package version is bumped to 6.0.0-beta.0 to reflect these breaking changes.

Dependency and Version Upgrades:

• Upgraded all Angular packages and devDependencies (such as @angular/core, @angular/cli, etc.) to version 21.x, updated typescript to 5.9.3, switched to typescript-eslint 8.x, and removed rxjs as a direct dependency. The package version is now 6.0.0-beta.0. (package.json, src/package.json, src/package-lock.json) [1] [2] [3]
• Updated the Node.js version in CI and npm publish workflows to 24.13.0, ensuring compatibility with the latest Node and toolchain. (.github/workflows/ci.yml, .github/workflows/npm-publish.yml) [1] [2]

ESLint Configuration Modernization:

• Removed the old .eslintrc.json and introduced a new eslint.config.js using the flat config format, aligning with the latest ESLint and Angular ESLint recommendations. This also updates rule sets, selectors, and disables deprecated rules. (.eslintrc.json, eslint.config.js) [1] [2]

Other Notable Changes:

• Updated the CHANGELOG.md to document the new version and reference the associated Jira ticket.
• Minor tweaks to TypeScript config and npm scripts for improved test reliability and compatibility. (src/tsconfig.lib.json, package.json) [1] [2]

These changes collectively modernize the codebase, improve maintainability, and ensure compatibility with the latest Angular and Node.js ecosystems.

[Copilot]

Pull request overview

Upgrades @oncehub/knowledgeowl-angular to Angular 21 and modernizes the toolchain (Node, TypeScript, ESLint), aligning the library and CI/CD workflows with the updated ecosystem.

Changes:

• Upgraded Angular/TypeScript/ESLint dependencies and bumped package version to 6.0.0-beta.0.
• Migrated ESLint configuration from legacy .eslintrc.json to flat config (eslint.config.js).
• Updated CI and npm publish workflows to target Node 24.13.0 and adjusted test execution for CI (--watch=false).

Reviewed changes

Copilot reviewed 8 out of 12 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
package.json	Updates version, scripts (CI-friendly tests), and dependency set for Angular 21 / ESLint 9 / TS 5.9.
eslint.config.js	Introduces ESLint flat config using typescript-eslint + angular-eslint.
.eslintrc.json	Removes legacy ESLint configuration.
.github/workflows/ci.yml	Updates CI Node version targeting Node 24.13.0.
.github/workflows/npm-publish.yml	Updates publish workflow (Node version, permissions, manual trigger).
tsconfig.json	Removes explicit lib entries (relies on TS defaults for target: ES2022).
src/tsconfig.lib.json	Removes explicit lib entries (relies on base TS defaults).
test/karma.conf.js	Minor formatting cleanup.
src/package.json	Bumps library package version to 6.0.0-beta.0.
src/package-lock.json	Updates lockfile version references to 6.0.0-beta.0.
CHANGELOG.md	Adds a new changelog entry (currently for 5.1.6).

Files not reviewed (1)

• src/package-lock.json: Language not supported

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[Copilot]

@so-kaushal I've opened a new pull request, #271, to work on those changes. Once the pull request is ready, I'll request review from you.

[Copilot]

@so-kaushal I've opened a new pull request, #272, to work on those changes. Once the pull request is ready, I'll request review from you.