docs: add 9 blog posts, 4 tutorials, and tutorials section

[jflowers]

Summary

Adds a batch of 9 blog posts and 4 tutorials to the Unbound Force website, plus a new Tutorials documentation section. This closes 13 tracked GitHub issues in a single coordinated effort.

Blog posts cover recent releases and capabilities:

• CI failure classification (/review-pr signal vs noise)
• AGENTS.md quality (why it determines code quality)
• Dewey knowledge stores (v3.1.0 file-backed learnings)
• Dewey slash command UX (/dewey-store zero-code UX)
• Pluggable LLM providers (Ollama + Vertex AI)
• Gaze baseline comparison (per-function CRAP regression)
• Council review action (Divisor Council in GitHub Actions)
• Prompt hardening (compression resilience)
• Multi-platform support (uf init --platform)

Tutorials provide step-by-step guides:

• Setting up Dewey knowledge stores
• Configuring Dewey embedding/synthesis providers
• CRAP baseline comparison in CI with Gaze
• Customizing hero experience with /onboard

Closes #46, #51, #64, #65, #69, #70, #72, #114, #116, #150, #151, #191, #198

How to Test

1. Run npm run build — should produce 206 pages with no errors
2. Run npm run dev and verify:
   • Tutorials section appears in sidebar between Reference and Changelog
   • All 4 tutorials render correctly at /docs/tutorials/
   • All 9 blog posts appear in the blog listing
   • Cross-links between blog↔tutorial pairs work bidirectionally
3. Click through each tutorial's "Further Reading" section to verify links resolve

How to Demo

1. Navigate to http://localhost:1313/docs/tutorials/ — see the tutorials landing page with links to all 4 guides
2. Open a blog post with a companion tutorial (e.g., "Dewey Knowledge Stores") — click the "Try It" link to the tutorial
3. From the tutorial, click "Further Reading" back to the blog post — bidirectional linking works
4. Check the sidebar — Tutorials sits between Reference and Changelog

Key Files Changed

Config: menus.en.toml — added tutorials nav entry at weight 37

Blog (9 new): agents-md-quality.md, ci-failure-classification.md, council-review-action.md, dewey-knowledge-stores.md, dewey-slash-command-ux.md, gaze-baseline-comparison.md, multi-platform-support.md, pluggable-llm-providers.md, prompt-hardening.md

Tutorials (5 new): _index.md, dewey-knowledge-stores.md, dewey-provider-configuration.md, gaze-crap-baseline-ci.md, onboard-customization.md

OpenSpec artifacts (6 new): proposal, design, specs, tasks for blog-tutorials-batch

Dewey learnings (2 new): retrospective learnings from the implementation session

This PR was generated by /uf.finale (AI-assisted).

[yvonnedevlinrh]

Verdict: REQUEST CHANGES (0 CRITICAL, 3 HIGH, 2 MEDIUM, 1 LOW)

What it does: Adds 9 blog posts + 4 tutorials + a new Tutorials nav section; claims to close 13 issues. Build passes (206 pages, npm run build exit 0). Content quality, security, and structure are strong.

Blocking Issues

#	Severity	Finding
1	HIGH	The 4 new tutorials lack slug: frontmatter, so Hugo derives their URLs from titles. This breaks 7 internal links: 3 blog→tutorial links and 4 links in _index.md.
2	HIGH	onboard-customization title contains a literal /, producing a mangled URL /docs/tutorials/getting-started-with-/ (empty trailing segment).
3	HIGH	Zero-Waste Mandate violation — dead internal links shipping to production. Same root cause as #1.
4	MEDIUM	Tutorial count discrepancy: PR title says "5 tutorials", body and implementation say "4" (pinkman tutorial was removed).
5	MEDIUM	specs/tutorials.md still lists the removed Pinkman OSS Scout tutorial (#45) and states "5 tutorials / 15 pages" (actual: 4 tutorials / 14 pages). tasks.md correctly strikes the pinkman task, so spec and tasks disagree.
6	LOW	gaze crap baseline command in gaze-baseline-comparison.md may differ from the command specified in issue #151 — verify for copy-paste accuracy.

Dead Link Detail

Tutorials render at title-derived URLs, but links point to filename-based slugs:

• content/blog/gaze-baseline-comparison.md:143 → /docs/tutorials/gaze-crap-baseline-ci/ (actual: /docs/tutorials/setting-up-crap-baseline-comparison-in-ci/)
• content/blog/dewey-knowledge-stores.md:169 → /docs/tutorials/dewey-knowledge-stores/ (actual: /docs/tutorials/setting-up-dewey-knowledge-stores/)
• content/blog/pluggable-llm-providers.md:151 → /docs/tutorials/dewey-provider-configuration/ (actual: /docs/tutorials/configuring-dewey-embedding-and-synthesis-providers/)
• content/docs/tutorials/_index.md:14-17 → all 4 filename-based slugs, all dead

Not Blocking

• WARN-level "Description too short" messages on auto-generated /tags/* taxonomy pages. Unrelated to this PR; does not affect the verdict.

Root Cause & Fix

A single mechanical omission — tutorials have no slug: frontmatter. The spec's own Tutorial Frontmatter requirement (specs/tutorials.md) also omits slug, which propagated into implementation.

1. Add slug: matching each filename to the 4 tutorial frontmatter blocks (dewey-knowledge-stores, dewey-provider-configuration, gaze-crap-baseline-ci, onboard-customization), then npm run build and verify the links resolve in public/.
2. Correct the PR title to "4 tutorials" and sync specs/tutorials.md (remove pinkman #45; change "5 tutorials / 15 pages" → "4 tutorials / 14 pages").
3. (LOW) Verify the gaze crap baseline command against the gaze repo.

Content quality, security (SHA-pinned Actions, no secrets), and build health are otherwise strong.

[jflowers]

Thanks for the thorough review, @yvonnedevlinrh! All findings addressed:

1. Missing slug: frontmatter (HIGH)
Addressed in 9b39345: Added slug: to all 4 tutorials (dewey-knowledge-stores, dewey-provider-configuration, gaze-crap-baseline-ci, onboard-customization). URLs now match the filename-based paths referenced by blog posts and _index.md.

2. Invalid / in onboard-customization title (HIGH)
Addressed in 9b39345: Title changed from "Getting Started with /onboard —..." to "Getting Started with onboard —...". Combined with the slug fix, URL now resolves correctly as onboard-customization/.

3. Zero-Waste Mandate — dead internal links (HIGH)
Addressed in 9b39345: Same root cause as #1/#2. Verified clean build produces correct URLs and all 7 internal links (3 blog→tutorial + 4 in _index.md) now resolve.

4. PR title "5 tutorials" → "4 tutorials" (MEDIUM)
PR title updated to "docs: add 9 blog posts, 4 tutorials, and tutorials section".

5. Spec still references removed Pinkman tutorial (MEDIUM)
Addressed in 457857f: Removed the Pinkman OSS Scout Tutorial requirement from specs/tutorials.md and corrected counts from "5 tutorials / 15 pages" to "4 tutorials / 14 pages".

6. gaze crap baseline command accuracy (LOW)
Verified against gaze source code (cmd/gaze/main.go): --format=json is valid (lines 915-916), > .gaze/baseline.json matches the documented baseline workflow in gaze's README. Commands in the blog are accurate.