docs: fix markdown lint, broken links, stale counts, and publishing guidance

- Fix broken ToC anchors in competitive-analysis.md (MD051)
- Add blank lines before code blocks in api-reference.md (MD031)
- Add language identifiers to directory tree code blocks in MARKETPLACE.md and skills/unraid/README.md (MD040)
- Fix size unit guidance conflict: clarify disk sizes are KB, memory is bytes
- Update stale "90 actions" references to "76 actions" across research docs
- Fix coverage table terminology and clarify 22% coverage calculation
- Recommend PyPI Trusted Publishing (OIDC) over API token secrets in PUBLISHING.md
- Update action count in .claude-plugin/README.md

Resolves review threads: PRRT_kwDOO6Hdxs5uvO2m, PRRT_kwDOO6Hdxs5uvO2o,
PRRT_kwDOO6Hdxs5uvO2r, PRRT_kwDOO6Hdxs5uvOcl, PRRT_kwDOO6Hdxs5uvOcr,
PRRT_kwDOO6Hdxs5uvKrq, PRRT_kwDOO6Hdxs5uvO2u, PRRT_kwDOO6Hdxs5uvO2w,
PRRT_kwDOO6Hdxs5uvO2z, PRRT_kwDOO6Hdxs5uu7zl

skills/unraid/README.md

@@ -8,7 +8,7 @@ This skill provides complete access to all 27 read-only Unraid GraphQL API endpo
 
 ### Files
 
-```
+```text
 skills/unraid/
 ├── SKILL.md                           # Main skill documentation
 ├── README.md                          # This file
@@ -147,7 +147,7 @@ This skill activates when you mention:
 
 ## Notes
 
-- All sizes are in **kilobytes**
+- Disk/array sizes are in **kilobytes**; memory values (from `info.memory` and `metrics.memory`) are in **bytes**
 - Temperatures are in **Celsius**
 - Docker container logs are **not accessible** via API (use SSH)
 - Poll no faster than every **5 seconds** to avoid server load

skills/unraid/references/api-reference.md

@@ -50,6 +50,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -92,6 +93,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -128,6 +130,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -149,6 +152,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -174,6 +178,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (sample):**
+
 ```json
 {
   "data": {
@@ -223,6 +228,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (sample):**
+
 ```json
 {
   "data": {
@@ -261,6 +267,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -297,6 +304,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (when no containers):**
+
 ```json
 {
   "data": {
@@ -324,6 +332,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (when no VMs):**
+
 ```json
 {
   "data": {
@@ -349,6 +358,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (sample, 32 logs found):**
+
 ```json
 {
   "data": {
@@ -388,6 +398,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -429,6 +440,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -463,6 +475,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (sample):**
+
 ```json
 {
   "data": {
@@ -503,6 +516,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (when no UPS):**
+
 ```json
 {
   "data": {
@@ -542,6 +556,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -567,6 +582,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -606,6 +622,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (sample, 4 keys found):**
+
 ```json
 {
   "data": {
@@ -681,6 +698,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -712,6 +730,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -742,6 +761,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response:**
+
 ```json
 {
   "data": {
@@ -816,6 +836,7 @@ curl -s -X POST "https://YOUR-UNRAID/graphql" \
 ```
 
 **Response (when no plugins):**
+
 ```json
 {
   "data": {