docs(metadata): standardize topics to controlled vocabulary

- Restrict topics in CLAUDE.md to: philosophy, craft, epistemology, exploratory-testing, agile
- Update GROK.md YAML examples for title quotes and related file extensions
- Adjust topics in published articles to align with controlled list, removing deprecated terms like bdd, automation, reasoning, formal-logic, resources

CLAUDE.md

@@ -62,7 +62,7 @@ abstract: >
 ---
 ```
 
-- **topics** use a controlled but organically growing vocabulary: `epistemology`, `exploratory-testing`, `agile`, `bdd`, `reasoning`, `formal-logic`, `automation`, `philosophy`, `craft`, `resources`
+- **topics** use a small, controlled vocabulary: `philosophy`, `craft`, `epistemology`, `exploratory-testing`, `agile`. Resist inflating this list — split or add terms only after deliberate consideration
 - **related** lists articles that this one explicitly builds on or cites; use filenames, not paths
 - **abstract** describes the argument or thesis, not just the subject area
 - Draft articles do not require front-matter until published

GROK.md

@@ -65,12 +65,12 @@ Grok excels as a creative, truth-seeking collaborator for this kind of reflectiv
 
 ```yaml
 ---
-title: Exact Title of the Article
+title: "Exact Title of the Article"
 date: YYYY-MM-DD
 topics: [philosophy, craft, epistemology, exploratory-testing, agile]
 related:
-  - slug-of-related-article
+  - slug-of-related-article.md
-  - another-related-article
+  - another-related-article.md
 abstract: A dense, content-rich paragraph (usually 2–4 sentences) that captures the central provocation or thesis. Useful for future indexing, search, and reference tools.
 ---
 ```

articles/published/The-Various-Uses-Of-Vegetable-Condiments-In-Testing.md

@@ -1,7 +1,7 @@
 ---
 title: "The Various Uses Of Vegetable Condiments In Testing"
 date: 2025-06-02
-topics: [bdd, agile, automation]
+topics: [agile, craft]
 related:
   - Agile-Or-Whatever-You-Call-It.md
 abstract: >

articles/published/five-essential-lessons.md

@@ -1,7 +1,7 @@
 ---
 title: "Five Essential Lessons For Software Testers"
 date: 2025-09-22
-topics: [epistemology, philosophy, craft]
+topics: [epistemology, philosophy]
 related:
   - Testers-As-Explorers.md
 abstract: >

articles/published/resources-for-testers.md

@@ -1,7 +1,7 @@
 ---
 title: "Resources For Testers"
 date: 2025-12-15
-topics: [resources, craft]
+topics: [craft]
 related: []
 abstract: >
   Recommended books, blogs, and community resources for software testers —

articles/published/the-logic-of-software-testing.md

@@ -1,7 +1,7 @@
 ---
 title: "The Logic Of Software Testing"
 date: 2025-12-12
-topics: [epistemology, reasoning, formal-logic]
+topics: [epistemology]
 related:
   - five-essential-lessons.md
   - Testers-As-Explorers.md

articles/published/what-makes-us-better.md

@@ -1,7 +1,7 @@
 ---
 title: “What Makes Us Better Engineers?”
 date: 2026-03-06
-topics: [philosophy, craft, automation]
+topics: [philosophy, craft]
 related: []
 abstract: >
   Whether LLMs like Claude change engineering in degree or in kind —