docs(standards): mirror doc-forge wiki style; mermaid + copyable build prompt

- move templates into src/templates; renumber wiki pages; add app-components page

- embed agentic build prompt as a copyable markdown block; add mermaid diagrams

- build.py writes <name>/mcp; config static bundle -> standards/mcp

- registry reads libraries.json as bytes (committed file was UTF-16LE); normalize to UTF-8

- Dockerfile: drop stale blog copy; per-repo <name>/mcp copies

- drop nested standards/mcp/standards duplicate and empty root mcp/

standards/src/templates/app/config.py

@@ -0,0 +1,36 @@
+"""# Summary
+
+App configuration loaded from environment — a Settings dataclass with defaults
+plus a singleton settings instance populated from OS environment variables at
+import time.
+"""
+import os
+from dataclasses import dataclass
+
+
+@dataclass
+class Settings:
+    """Runtime configuration settings for the application.
+
+    Attributes:
+        debug (bool): Enable debug behavior. Defaults to False.
+        mongo_uri (str): MongoDB connection URI. Defaults to mongodb://localhost:27017.
+        mongo_db (str): MongoDB database name. Defaults to app_template.
+        worker_poll_seconds (int): Worker poll interval in seconds. Defaults to 30.
+        worker_max_retries (int): Maximum job retries before skipping. Defaults to 3.
+    """
+
+    debug: bool = False
+    mongo_uri: str = "mongodb://localhost:27017"
+    mongo_db: str = "app_template"
+    worker_poll_seconds: int = 30
+    worker_max_retries: int = 3
+
+
+settings = Settings(
+    debug=os.environ.get("DEBUG", "").lower() in ("1", "true", "yes"),
+    mongo_uri=os.environ.get("MONGO_URI", "mongodb://localhost:27017"),
+    mongo_db=os.environ.get("MONGO_DB", "app_template"),
+    worker_poll_seconds=int(os.environ.get("WORKER_POLL_SECONDS", "30")),
+    worker_max_retries=int(os.environ.get("WORKER_MAX_RETRIES", "3")),
+)