Adds a new Agent Skill - Acquire-Codebase-Knowledge (#1373)

* feat(skill): add acquire-codebase-knowledge skill documentation

* feat(templates): add architecture, concerns, conventions, integrations, stack, structure, and testing documentation templates

* feat(references): add inquiry checkpoints and stack detection documentation

* feat(scan): add script to collect project discovery information for acquire-codebase-knowledge skill

* feat(skills): add acquire-codebase-knowledge skill for codebase mapping and documentation

* feat(scan): enhance scan script with absolute path handling and improved output variable validation

* feat(scan): replace bash script with Python script for project discovery information collection

* feat(skills): update acquire-codebase-knowledge skill to replace scan.sh with scan.py

skills/acquire-codebase-knowledge/assets/templates/INTEGRATIONS.md

@@ -0,0 +1,48 @@
+# External Integrations
+
+## Core Sections (Required)
+
+### 1) Integration Inventory
+
+| System | Type (API/DB/Queue/etc) | Purpose | Auth model | Criticality | Evidence |
+|--------|---------------------------|---------|------------|-------------|----------|
+| [name] | [type] | [purpose] | [auth] | [high/med/low] | [file] |
+
+### 2) Data Stores
+
+| Store | Role | Access layer | Key risk | Evidence |
+|-------|------|--------------|----------|----------|
+| [db/cache/etc] | [role] | [module] | [risk] | [file] |
+
+### 3) Secrets and Credentials Handling
+
+- Credential sources: [env/secrets manager/config]
+- Hardcoding checks: [result]
+- Rotation or lifecycle notes: [known/unknown]
+
+### 4) Reliability and Failure Behavior
+
+- Retry/backoff behavior: [implemented/none/partial]
+- Timeout policy: [where configured]
+- Circuit-breaker or fallback behavior: [if any]
+
+### 5) Observability for Integrations
+
+- Logging around external calls: [yes/no + where]
+- Metrics/tracing coverage: [yes/no + where]
+- Missing visibility gaps: [list]
+
+### 6) Evidence
+
+- [path/to/integration-wrapper]
+- [path/to/config-or-env-template]
+- [path/to/monitoring-or-logging-config]
+
+## Extended Sections (Optional)
+
+Add only when needed:
+
+- Endpoint-by-endpoint catalog
+- Auth flow sequence diagrams
+- SLA/SLO per integration
+- Region/failover topology notes