fix(ci): catalog sync, markdownlint, unicode safety, unsupported frontmatter key

catalog:sync: update skill count 261→265 in README.md, AGENTS.md,
docs/zh-CN/AGENTS.md, .claude-plugin/plugin.json

markdownlint:
- MD009: strip trailing spaces in 10_purpose-why, 20_positioning,
  40_personality-archetype, 50_voice-tone, 60_narrative-story, 90_SYNTHESIS
  (both skills/ and .agents/skills/ copies)
- MD037: wrap ___ placeholders in backticks in 70_founder-tension.md:39
- MD028: replace blank lines inside blockquotes with bare > in 90_SYNTHESIS.md

unicode-safety: replace U+2194 (↔) with ASCII <-> in 50_voice-tone.md and
competitive-report-structure/SKILL.md (both copies)

codex-validator: remove unsupported `origin: community` key from
brand-discovery, competitive-platform-analysis, competitive-report-structure,
benchmark-methodology SKILL.md files (both copies)

.agents/skills/brand-discovery/SKILL.md

@@ -6,7 +6,6 @@ description: >-
   personality, voice, narrative, and founder-brand tension across 8 modules
   using laddering, 5 Whys, and projective techniques. Produces a resumable
   session with disk-persisted state and a master brandbook (90_SYNTHESIS.md).
-origin: community
 ---
 
 # Brand Discovery

.agents/skills/brand-discovery/references/10_purpose-why.md

@@ -31,9 +31,9 @@
 
 ### Candidate Why formulations (offer 2–3 versions, vary register and specificity)
 
-1. 
-2. 
-3. 
+1.
+2.
+3.
 
 ### Open questions / threads to pursue in later modules
 

.agents/skills/brand-discovery/references/20_positioning.md

@@ -36,8 +36,8 @@
 
 ### Alternative framings (vary the category or the differentiator)
 
-1. 
-2. 
+1.
+2.
 
 ### White-space hypothesis (what no competitor is claiming that this brand could own)
 

.agents/skills/brand-discovery/references/40_personality-archetype.md

@@ -50,9 +50,9 @@
 
 ### Personality in action (3 behavioural guidelines derived from the archetype)
 
-1. 
-2. 
-3. 
+1.
+2.
+3.
 
 ### What the brand must never sound or look like (the anti-personality)
 

.agents/skills/brand-discovery/references/50_voice-tone.md

@@ -1,7 +1,7 @@
 # Module 50 — Voice & Tone
 
-> **Frameworks:** Brand voice spectrum (formal ↔ casual, serious ↔ playful,
-> distant ↔ warm, conventional ↔ irreverent) · Content-type tone matrix
+> **Frameworks:** Brand voice spectrum (formal <-> casual, serious <-> playful,
+> distant <-> warm, conventional <-> irreverent) · Content-type tone matrix
 >
 > **Goal:** Codify the brand's verbal register precisely enough that two different
 > writers produce copy that sounds like the same person. Voice is constant;
@@ -54,8 +54,8 @@
 
 ### The three things to check every draft against
 
-1. 
-2. 
-3. 
+1.
+2.
+3.
 
 ### Open questions / tensions with Module 40 Personality

.agents/skills/brand-discovery/references/60_narrative-story.md

@@ -32,13 +32,13 @@
 
 ### Trueline draft (Neumeier: "[Brand] is the only [category] that [unique claim].")
 
-> 
+>
 
 ### Alternative truelines (2–3 variations, vary level of abstraction)
 
-1. 
-2. 
-3. 
+1.
+2.
+3.
 
 ### Brand story arc
 

.agents/skills/brand-discovery/references/70_founder-tension.md

@@ -36,7 +36,7 @@
 [Founder IS the brand] ←————————→ [Organisation brand stands alone]
          1         2         3         4         5
 ```
-Current position: ___   Target position (3-year): ___
+Current position: `___`   Target position (3-year): `___`
 
 ### What the founder brand should own (and keeps owning)
 

.agents/skills/brand-discovery/references/90_SYNTHESIS.md

@@ -24,9 +24,9 @@
 ### 1. The Why (from Module 10)
 
 > **Core belief:**
-
+>
 > **Behavioural How (values in action):**
-
+>
 > **What we refuse to be:**
 
 ---
@@ -37,7 +37,7 @@
 > For **[target client]** who **[situation]**, **[brand name]** is the
 > **[category]** that **[unique value]**. Unlike **[alternatives]**, we
 > **[key differentiator]**.
-
+>
 > **White-space the brand owns:**
 
 ---
@@ -45,9 +45,9 @@
 ### 3. Audience (from Module 30)
 
 > **Ideal Client Profile (one-paragraph portrait):**
-
+>
 > **Niche the brand is building toward:**
-
+>
 > **Red-flag / disqualifier:**
 
 ---
@@ -68,17 +68,17 @@
 ### 4b. Aaker Brand System (from Module 40)
 
 > **Primary archetype** (Mark & Pearson):
-
+>
 > **Secondary archetype** (if present):
-
+>
 > **Aaker brand identity** — four dimensions:
 > - *Brand as product:*
 > - *Brand as organisation:*
 > - *Brand as person (personality):*
 > - *Brand as symbol:*
-
+>
 > **Brand associations** (3–5 key associations the brand should own):
-
+>
 > **Brand equity signals** (what clients would lose if this brand disappeared):
 
 ---
@@ -86,18 +86,18 @@
 ### 5. Voice & Tone summary (from Module 50)
 
 > **Voice statement (one paragraph):**
-
+>
 > **The three checks every draft must pass:**
-> 1. 
-> 2. 
-> 3. 
+> 1.
+> 2.
+> 3.
 
 ---
 
 ### 6. Narrative assets (from Module 60)
 
 > **Trueline:**
-
+>
 > **Brand story arc (one paragraph, usable as an About page starting point):**
 
 ---
@@ -105,7 +105,7 @@
 ### 7. Founder / organisation brand boundary (from Module 70)
 
 > **What the founder brand owns:**
-
+>
 > **What the organisation brand owns:**
 
 ---
@@ -128,6 +128,6 @@
 
 <!-- 3–5 concrete actions the brand can take based on this brandbook. -->
 
-1. 
-2. 
-3. 
+1.
+2.
+3.

.agents/skills/competitive-platform-analysis/SKILL.md

@@ -6,7 +6,6 @@ description: >-
   counts as a competitor, which tier they belong to, and which sources to mine.
   First step in the three-skill competitive pipeline; precedes
   benchmark-methodology.
-origin: community
 ---
 
 # Competitive Platform Analysis

.agents/skills/competitive-report-structure/SKILL.md

@@ -6,7 +6,6 @@ description: >-
   profiles, benchmarking matrix, white-space analysis, strategic recommendations,
   and team alignment trigger questions. Final step in the three-skill competitive
   pipeline.
-origin: community
 ---
 
 # Competitive Report Structure
@@ -59,7 +58,7 @@ this and knows what to do. No methodology here.
 
 ### 2. Market landscape & category framing
 Define the category and map it. Use a **multi-axis map** — at minimum a 2×2
-(e.g., *brand-led ↔ capability-led* × *boutique ↔ enterprise-scale*), and
+(e.g., *brand-led <-> capability-led* × *boutique <-> enterprise-scale*), and
 ideally the **client's tension plot** from `benchmark-methodology` as the
 headline map. Place every profiled competitor and the client. The map should
 make the client's intended position visually obvious and show how crowded (or