refactor(linkedin): merge templates into quick (S15)

plugins/linkedin-thought-leadership/commands/quick.md

@@ -3,9 +3,13 @@ name: linkedin:quick
 description: |
   5-minute quick post creation using the 3-line formula. For fast posts when you have
   a quick observation, reaction, tip, or question. Target: 150-500 characters.
-  Use when the user needs to post quickly or has a simple insight to share.
+  Also the single entry point for the 8 post-type templates (reaction, quick tip,
+  observation, hot take, failure, question, curation, one-liner).
+  Use when the user needs to post quickly, has a simple insight to share, or wants
+  a proven template structure.
   Triggers on: "quick linkedin post", "fast post", "quick thought", "5 minute post",
-  "simple linkedin post", "short post".
+  "simple linkedin post", "short post", "post template", "give me a template",
+  "post structure", "fill in the blank post".
 allowed-tools:
   - Read
   - Bash
@@ -50,6 +54,12 @@ Infer the post type from context — do NOT present a menu. Use these signals:
 
 Only ask if truly ambiguous (no discernible intent). Otherwise, state: "This reads as a [TYPE] — proceeding with that format."
 
+These 8 post types ARE the template library. Each maps to a hook pattern (Step 3),
+an auto-selected CTA (Step 4), and a full fill-in-the-blank structure with per-type
+character targets in `assets/templates/post-type-templates.md`. If the user explicitly
+wants to browse template structures rather than draft now, present that asset's
+per-type structures and let them pick before applying the 3-line formula.
+
 ## Step 2: Apply 3-Line Formula
 
 Use this structure for all quick posts: