feat: improve skill quality scores across 4 skills

Ran skills through tessl evaluation tooling and applied targeted
improvements to structure, conciseness, and workflow clarity.

| Skill             | Before | After | Change |
|-------------------|--------|-------|--------|
| defuddle          |  100%  | 100%  |   --   |
| json-canvas       |   83%  | 100%  |  +17%  |
| obsidian-bases    |   83%  | 100%  |  +17%  |
| obsidian-cli      |   94%  | 100%  |   +6%  |
| obsidian-markdown |   71%  |  94%  |  +23%  |

Changes:
- Add structured workflows with validation steps
- Extract verbose reference tables to references/ files (progressive disclosure)
- Remove standard Markdown content Claude already knows (obsidian-markdown)
- Add troubleshooting section for common YAML/formula errors (obsidian-bases)
- Restructure plugin dev section into numbered test cycle (obsidian-cli)
- Condense redundant examples, keep one per pattern

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

skills/obsidian-cli/SKILL.md

@@ -61,11 +61,29 @@ Use `--copy` on any command to copy output to clipboard. Use `silent` to prevent
 
 ## Plugin development
 
-Reload a plugin after code changes — essential for the develop/test cycle:
+### Develop/test cycle
 
-```bash
-obsidian plugin:reload id=my-plugin
-```
+After making code changes to a plugin or theme, follow this workflow:
+
+1. **Reload** the plugin to pick up changes:
+   ```bash
+   obsidian plugin:reload id=my-plugin
+   ```
+2. **Check for errors** — if errors appear, fix and repeat from step 1:
+   ```bash
+   obsidian dev:errors
+   ```
+3. **Verify visually** with a screenshot or DOM inspection:
+   ```bash
+   obsidian dev:screenshot path=screenshot.png
+   obsidian dev:dom selector=".workspace-leaf" text
+   ```
+4. **Check console output** for warnings or unexpected logs:
+   ```bash
+   obsidian dev:console level=error
+   ```
+
+### Additional developer commands
 
 Run JavaScript in the app context:
 
@@ -73,24 +91,9 @@ Run JavaScript in the app context:
 obsidian eval code="app.vault.getFiles().length"
 ```
 
-Check for errors and console output:
+Inspect CSS values:
 
 ```bash
-obsidian dev:errors
-obsidian dev:console
-obsidian dev:console level=error
-```
-
-Take a screenshot for visual testing:
-
-```bash
-obsidian dev:screenshot path=screenshot.png
-```
-
-Inspect DOM and CSS:
-
-```bash
-obsidian dev:dom selector=".workspace-leaf" text
 obsidian dev:css selector=".workspace-leaf" prop=background-color
 ```