[WIP] Port next 5 lint rules from PR #2371

[Copilot]

• Port template-no-args-paths rule (COMPLETE - branch ready)
• Port template-no-input-block rule (COMPLETE - branch ready)
• Port template-no-forbidden-elements rule
• Port template-no-inline-styles rule
• Port template-splat-attributes-only rule

PR #2 (template-no-input-block): Complete. Disallows block form of {{input}} helper.

Original prompt

Repository: ember-cli/eslint-plugin-ember

Context:

• Umbrella PR with multiple rule ports: Port over all ember-template-lint rules that would be applicable for gjs/gts projects #2371
• Prior extracted PRs have been merged (e.g. template-no-log in Port template-no-log rule from PR #2371 #2381) and at least one additional rule after that.
• We opted NOT to bring forward strict-gjs and strict-gts configs.

Task (Batch): Proceed with the next 5 lint rules from PR #2371, creating ONE pull request per rule.

Requirements for EACH PR:

• Base branch: master.
• Each PR must include only one rule’s implementation + tests + docs.
• Do NOT add/port strict-gjs or strict-gts configs or any related scaffolding.
• Keep PRs minimal and self-contained; include only shared utilities that are strictly required for the specific rule.
• Ensure tests/CI pass.
• PR title format: "Port rule from PR Port over all ember-template-lint rules that would be applicable for gjs/gts projects #2371" (or similar).
• PR description must reference Port over all ember-template-lint rules that would be applicable for gjs/gts projects #2371 and mention it is part of splitting Port over all ember-template-lint rules that would be applicable for gjs/gts projects #2371 into one rule per PR.

Batch strategy:

• Select the next 5 rules that remain to be ported from Port over all ember-template-lint rules that would be applicable for gjs/gts projects #2371 (excluding any already merged into master).
• Create 5 separate branches and open 5 PRs.
• Avoid overlapping changes between PRs as much as possible; if a utility is shared across multiple rules, prefer to extract it into the earliest PR in the batch or keep it inline if small, but do not create an extra utility-only PR.

Deliverables:

• 5 new open pull requests in ember-cli/eslint-plugin-ember.

This pull request was created from Copilot chat.

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