Prevent agents from adding misspellings to .cspell.yaml word list

[Copilot]

Agents have been bypassing spell-checking by adding misspelled words to .cspell.yaml, defeating its purpose. This adds explicit policy guardrails in both the config file and documentation.

.cspell.yaml

Adds a prominent IMPORTANT block at the top of the file:

• Never add a word to silence a spell-check failure — fix the source instead
• Only genuine, correctly-spelled technical terms qualify for the word list
• Any addition requires a proposal (issue/PR) that is reviewed and approved before merging

docs/linting.md

• Removes the open-ended suggestion to freely extend the word list as the project grows
• Adds a Word list policy subsection documenting the same rules as the config comments

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[Copilot]

Pull request overview

Updates the repository’s spell-checking guidance to prevent bypassing cspell by adding misspellings to the .cspell.yaml word list, aligning linting documentation with a stricter word-list policy.

Changes:

• Tightens .cspell.yaml header guidance to discourage adding misspellings to the word list.
• Updates docs/linting.md to replace the “extend as the project grows” guidance with an explicit word-list policy section.

Reviewed changes

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

File	Description
templates/lint/.cspell.yaml	Adds policy-oriented comments above the cspell configuration/word list.
docs/linting.md	Documents a stricter word-list policy and removes open-ended guidance about extending the list.

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[Malcolmnixon]

@copilot apply changes based on the comments in this thread