chore: release v4.0.0 - sync 550+ skills and restructure docs

skills/stride-analysis-patterns/SKILL.md

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+---
+name: stride-analysis-patterns
+description: Apply STRIDE methodology to systematically identify threats. Use when analyzing system security, conducting threat modeling sessions, or creating security documentation.
+---
+
+# STRIDE Analysis Patterns
+
+Systematic threat identification using the STRIDE methodology.
+
+## Use this skill when
+
+- Starting new threat modeling sessions
+- Analyzing existing system architecture
+- Reviewing security design decisions
+- Creating threat documentation
+- Training teams on threat identification
+- Compliance and audit preparation
+
+## Do not use this skill when
+
+- The task is unrelated to stride analysis patterns
+- You need a different domain or tool outside this scope
+
+## Instructions
+
+- Clarify goals, constraints, and required inputs.
+- Apply relevant best practices and validate outcomes.
+- Provide actionable steps and verification.
+- If detailed examples are required, open `resources/implementation-playbook.md`.
+
+## Resources
+
+- `resources/implementation-playbook.md` for detailed patterns and examples.