feat: Update skills for n8n-mcp unified tool API (v1.1.0)

BREAKING: Updated all skills to reflect n8n-mcp tool consolidation:

## Tool API Changes
- get_node_essentials → get_node({detail: "standard"})
- get_node_info → get_node({detail: "full"})
- get_node_documentation → get_node({mode: "docs"})
- search_node_properties → get_node({mode: "search_properties"})
- validate_node_minimal → validate_node({mode: "minimal"})
- validate_node_operation → validate_node({mode: "full"})
- get_property_dependencies → REMOVED (use get_node modes)

## New Features Documented
- Workflow activation via API (activateWorkflow/deactivateWorkflow operations)
- n8n_deploy_template - deploy templates directly to n8n
- n8n_workflow_versions - version history and rollback
- n8n_test_workflow - trigger execution
- n8n_executions - manage executions
- Smart parameters (branch, case) for IF/Switch connections
- Intent parameter for better AI responses

## Documentation Updates
- Added YouTube video introduction with thumbnail
- Added GitHub stars badge (1.2k milestone)
- Added build.sh script for dist packaging
- Fixed "5 skills" → "7 skills" inconsistency in README

## Files Updated
- n8n-mcp-tools-expert: Complete rewrite of SKILL.md, SEARCH_GUIDE.md,
  VALIDATION_GUIDE.md, WORKFLOW_GUIDE.md
- n8n-node-configuration: Updated SKILL.md, DEPENDENCIES.md
- n8n-validation-expert: Updated SKILL.md, ERROR_CATALOG.md, FALSE_POSITIVES.md
- n8n-workflow-patterns: Updated SKILL.md, README.md
- README.md, CLAUDE.md: Modernized documentation

Conceived by Romuald Członkowski - www.aiadvisors.pl/en

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

skills/n8n-validation-expert/ERROR_CATALOG.md

@@ -65,8 +65,8 @@ Common validation errors by priority:
 
 **How to identify required fields**:
 ```javascript
-// Use get_node_essentials to see what's required
-const info = get_node_essentials({
+// Use get_node to see what's required
+const info = get_node({
   nodeType: "nodes-base.slack"
 });
 // Check properties marked as "required": true
@@ -868,15 +868,15 @@ let config = {
   text: "Hello"
 };
 
-validate_node_operation({nodeType: "nodes-base.slack", config});
+validate_node({nodeType: "nodes-base.slack", config, profile: "runtime"});
 // ✅ Valid
 
 // Step 2: Add features one by one
 config.attachments = [...];
-validate_node_operation({nodeType: "nodes-base.slack", config});
+validate_node({nodeType: "nodes-base.slack", config, profile: "runtime"});
 
 config.blocks = [...];
-validate_node_operation({nodeType: "nodes-base.slack", config});
+validate_node({nodeType: "nodes-base.slack", config, profile: "runtime"});
 ```
 
 ### Pattern 2: Error Triage
@@ -903,14 +903,14 @@ result.suggestions.forEach(sug => {
 });
 ```
 
-### Pattern 3: Use get_node_essentials
+### Pattern 3: Use get_node
 
 **Problem**: Don't know what's required
 
 **Solution**:
 ```javascript
 // Before configuring, check requirements
-const info = get_node_essentials({
+const info = get_node({
   nodeType: "nodes-base.slack"
 });
 
@@ -927,7 +927,7 @@ info.properties.forEach(prop => {
 ## Summary
 
 **Most Common Errors**:
-1. `missing_required` (45%) - Always check get_node_essentials
+1. `missing_required` (45%) - Always check get_node
 2. `invalid_value` (28%) - Check allowed values
 3. `type_mismatch` (12%) - Use correct data types
 4. `invalid_expression` (8%) - Use Expression Syntax skill