feat: add OWASP Attack as first-class resource (Phase 1)

[PRAteek-singHWY]

Feature: Support for OWASP Attack resources (Phase 1)

Partially Fixes #471

Description

This PR implements Phase 1 (Foundation) of mapping OWASP resources into OpenCRE.
It introduces OWASP Attack pages as first-class entities in the graph, distinct from Standards and Tools.

This PR focuses on establishing the data model and backend support only. No automated parsers or external syncing are introduced yet.

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Changes

1. Data Model

application/defs/cre_defs.py

• Added Attack to the Credoctypes enum.
• Introduced Attack(Node) dataclass.

This keeps OWASP Attacks semantically distinct from other resource types and enables clean graph modeling in later phases.

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2. Backend Support

application/database/db.py

• Added dbNodeFromAttack and updated nodeFromDB to support the new Attack type.
• Fix: Updated add_node to safely handle nodes without a section attribute (required for non-Standard node types such as Attacks), preventing an AttributeError.

application/cmd/cre_main.py

• Updated register_node and parsing logic to accept and register defs.Attack.

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3. Verification Script

application/manual_seed_attacks.py

• Added an idempotent script to manually seed sample OWASP Attacks:
  • Path Traversal
  • SQL Injection
• Confirms correct persistence and retrieval with doctype = "Attack".

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Verification

Ran the manual seed script locally:

python3 application/manual_seed_attacks.py