fix: address 54 MEDIUM/LOW priority PR review issues

Comprehensive fixes across Python code, shell scripts, and documentation
addressing all remaining MEDIUM and LOW priority review comments.

Python Code Fixes (27 fixes):
- tools/info.py: Simplified dispatch with lookup tables, defensive guards,
  CPU fallback formatting, !s conversion flags, module-level sync assertion
- tools/docker.py: Case-insensitive container ID regex, keyword-only confirm,
  module-level ALL_ACTIONS constant
- tools/virtualization.py: Normalized single-VM dict responses, unified
  list/details queries
- core/client.py: Fixed HTTP client singleton race condition, compound key
  substring matching for sensitive data redaction
- subscriptions/: Extracted SSL context creation to shared helper in utils.py,
  replaced deprecated ssl._create_unverified_context API
- tools/array.py: Renamed parity_history to parity_status, hoisted ALL_ACTIONS
- tools/storage.py: Fixed dict(None) risks, temperature 0 falsiness bug
- tools/notifications.py, keys.py, rclone.py: Fixed dict(None) TypeError risks
- tests/: Fixed generator type annotations, added coverage for compound keys

Shell Script Fixes (13 fixes):
- dashboard.sh: Dynamic server discovery, conditional debug output, null-safe
  jq, notification count guard order, removed unused variables
- unraid-query.sh: Proper JSON escaping via jq, --ignore-errors and --insecure
  CLI flags, TLS verification now on by default
- validate-marketplace.sh: Removed unused YELLOW variable, defensive jq,
  simplified repository URL output

Documentation Fixes (24+ fixes):
- Version consistency: Updated all references to v0.2.0 across pyproject.toml,
  plugin.json, marketplace.json, MARKETPLACE.md, __init__.py, README files
- Tool count updates: Changed all "26 tools" references to "10 tools, 90 actions"
- Markdown lint: Fixed MD022, MD031, MD047 issues across multiple files
- Research docs: Fixed auth headers, removed web artifacts, corrected stale info
- Skills docs: Fixed query examples, endpoint counts, env var references

All 227 tests pass, ruff and ty checks clean.

.claude-plugin/README.md

@@ -27,10 +27,11 @@ This directory contains the Claude Code marketplace configuration for the Unraid
 ## Available Plugins
 
 ### unraid
+
 Query and monitor Unraid servers via GraphQL API - array status, disk health, containers, VMs, system monitoring.
 
 **Features:**
-- 27 read-only API endpoints
+- 10 tools with 90 actions (queries and mutations)
 - Real-time system metrics
 - Disk health and temperature monitoring
 - Docker container management
@@ -39,7 +40,7 @@ Query and monitor Unraid servers via GraphQL API - array status, disk health, co
 - Network share information
 - Notification management
 
-**Version:** 1.1.0
+**Version:** 0.2.0
 **Category:** Infrastructure
 **Tags:** unraid, monitoring, homelab, graphql, docker, virtualization
 
@@ -48,7 +49,7 @@ Query and monitor Unraid servers via GraphQL API - array status, disk health, co
 After installation, configure your Unraid server credentials:
 
 ```bash
-export UNRAID_URL="https://your-unraid-server/graphql"
+export UNRAID_API_URL="https://your-unraid-server/graphql"
 export UNRAID_API_KEY="your-api-key"
 ```