Add ObjectStack automation, schema, and UI design documentation

- Introduced SKILL.md for ObjectStack automation design, detailing flows, workflows, triggers, and ETL pipelines.
- Added node-types reference for quick access to flow types and node functionalities.
- Created SKILL.md for ObjectStack schema design, covering object definitions, field types, relationships, and validation rules.
- Added field-types reference for quick lookup of supported field types and their descriptions.
- Introduced SKILL.md for ObjectStack UI design, outlining view types, app navigation, dashboards, reports, and actions.
- Added view-types reference for quick access to UI view types, data providers, and filter operators.

Author: hotlong

skills/ai-agent-design/SKILL.md skills/objectstack-ai/SKILL.mdskills/ai-agent-design/SKILL.md renamed to skills/objectstack-ai/SKILL.md

@@ -1,5 +1,5 @@
 ---
-name: ai-agent-design
+name: objectstack-ai
 description: >
   Design ObjectStack AI agents, skills, tools, and RAG pipelines.
   Use when configuring autonomous agents, defining agent skills and tool sets,

…sign/references/agent-skill-reference.md …k-ai/references/agent-skill-reference.mdskills/ai-agent-design/references/agent-skill-reference.md renamed to skills/objectstack-ai/references/agent-skill-reference.md skills/ai-agent-design/references/agent-skill-reference.md renamed to skills/objectstack-ai/references/agent-skill-reference.md

@@ -1,5 +1,5 @@
 ---
-name: api-design
+name: objectstack-api
 description: >
   Design ObjectStack REST APIs, endpoints, service contracts, and integration
   protocols. Use when defining API routes, configuring authentication,

skills/api-design/SKILL.md skills/objectstack-api/SKILL.mdskills/api-design/SKILL.md renamed to skills/objectstack-api/SKILL.md

@@ -1,5 +1,5 @@
 ---
-name: schema-design
+name: objectstack-schema
 description: >
   Design ObjectStack data schemas (Objects, Fields, Validations, Indexes).
   Use when creating or modifying business object definitions, choosing field types,