fix(vale): update (vale sync), improve rules, exclude URLs and shortcode attributes from spell checking

[jstirnaman]

This PR updates and improves vale.sh rules in preparation for enabling Vale to run in PR checks and CI.

Updates vale and extensions
Add filters to prevent false positives on:

• URL paths (e.g., /api/v2/write, /kapacitor/v1/api/v2/tasks)

• Full URLs (http/https)

• Shortcode attribute values (endpoint="...", method="...", etc.)

• Add scope exclusions for code blocks (~code) and inline code (~raw) to prevent flagging code syntax.

• Disable Vale.Terms to prevent false positives from URLs/paths

• Create InfluxDataDocs.Units rule that allows duration literals (30d, 24h)
  while still validating byte units (GB, TB)

• Disable write-good.TooWordy for technical terms (aggregate, expiration)

• Add TokenIgnores for URL paths and inline code patterns

• Expand spelling ignore list with technical terms (subprocess, CPUs, etc.)

• Sync Google style packages via vale sync

Documentation improvements:

• Add new vale-linting skill with comprehensive workflow
• Update content-editing skill with Vale section
• Enhance ci-automation-engineer agent with Vale expertise
• Add Vale troubleshooting to copilot-instructions.md
• Add shell command permissions to settings.json

Reduces Vale warnings from 794 to 187 (76% reduction) while keeping style validation active.

[Copilot]

Pull request overview

This PR updates the repository’s Vale configuration and rule set to reduce false positives (URLs, paths, Hugo shortcodes, code spans) and adds supporting internal documentation so Vale can be enabled in PR/CI checks with less noise.

Changes:

• Updated .vale.ini to adjust enabled/disabled rules and add global TokenIgnores for URLs/paths/inline code.
• Enhanced/customized Vale styles (InfluxDataDocs + synced Google/write-good changes), including a new InfluxDataDocs.Units rule and expanded spelling ignores.
• Added internal “vale-linting” workflow documentation and referenced it from existing Copilot/Claude guidance.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
.vale.ini	Adds global ignore patterns and disables select rules (Google.Units, Vale.Terms, write-good.TooWordy).
.github/copilot-instructions.md	Updates troubleshooting table and links to the new vale-linting skill doc.
.claude/skills/vale-linting/SKILL.md	New comprehensive Vale workflow/how-to document.
.claude/skills/content-editing/SKILL.md	Adds a Vale “Style Linting” step and command examples.
.claude/settings.json	Expands allowed shell commands (including Vale wrapper and related tooling).
.claude/agents/ci-automation-engineer.md	Improves formatting and adds explicit Vale expertise responsibilities.
.ci/vale/styles/InfluxDataDocs/Units.yml	Introduces custom units rule to allow InfluxDB duration literals while checking byte units.
.ci/vale/styles/InfluxDataDocs/Terms/ignore.txt	Expands spelling ignore list with additional technical terms.
.ci/vale/styles/InfluxDataDocs/Spelling.yml	Excludes code/raw/table scopes and adds filters for URLs and shortcode attributes.
.ci/vale/styles/InfluxDataDocs/Capitalization.yml	Expands heading capitalization exceptions (products/acronyms/etc.).
.ci/vale/styles/Google/Units.yml	Synced Google units token patterns (note: Google.Units is disabled in .vale.ini).
.ci/vale/styles/Google/Quotes.yml	Raises severity to error and adjusts message text.
.ci/vale/styles/Google/Ordinal.yml	Removes ordinal exceptions (more strict checking).
.ci/vale/styles/Google/Colons.yml	Updates regex pattern for colon capitalization detection.
.ci/vale/styles/Google/AMPM.yml	Tightens AM/PM regex with word boundaries.
.ci/vale/styles/.vale-config/2-Hugo.ini	Adds Hugo-specific ignores for shortcodes/link constructs.