docs(plugins): deduplicate and cross-reference plugin capability docs

- Merge hook order + which-hook-to-use into single reference table
- Deduplicate npm spec restrictions (link to CLI reference)
- Deduplicate plugin shapes in cli/plugins.md (link to main definition)
- Add capability-cookbook to docs.json navigation
- Add cross-references: Architecture→Load pipeline, Config→configuration
  reference, Plugin slots→manifest kind, Adding capability→cookbook
- Add missing cursor bundle subtype in 3 locations
- Fix verbose/info→verbose/inspect references
- Remove duplicate "info is alias for inspect" note
- Add missing install command to CLI command summary
- Replace premature "shape" jargon with "pattern" before definition

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

docs/plugins/manifest.md

@@ -1,7 +1,7 @@
 ---
 summary: "Plugin manifest + JSON schema requirements (strict config validation)"
 read_when:
-  - You are building a OpenClaw plugin
+  - You are building an OpenClaw plugin
   - You need to ship a plugin config schema or debug plugin validation errors
 title: "Plugin Manifest"
 ---
@@ -32,7 +32,8 @@ Every native OpenClaw plugin **must** ship a `openclaw.plugin.json` file in the
 plugin errors and block config validation.
 
 See the full plugin system guide: [Plugins](/tools/plugin).
-For the public capability model: [Capability model](/tools/plugin#public-capability-model).
+For the native capability model and current external-compatibility guidance:
+[Capability model](/tools/plugin#public-capability-model).
 
 ## Required fields