[Spec] intorduced in app purchase (scaffold)

_specs/intorduced-in-app-purchase/v1/assets/README.md

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+# Assets for this spec
+
+Use this folder for diagrams, images, and attachments referenced by pages in this spec.
+
+Suggested:
+- `assets/diagrams/`     — draw.io, Excalidraw, PlantUML exports, ERDs
+- `assets/images/`       — screenshots/static images
+- `assets/attachments/`  — PDFs, sheets, other binaries

_specs/intorduced-in-app-purchase/v1/hld.md

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+---
+layout: spec
+title: intorduced in app purchase — HLD
+nav_title: "High-Level Design"
+nav_order: 10
+---
+# HLD
+## Context & Goals
+- …
+
+## Architecture (diagram)
+- Place diagrams under `assets/diagrams/` and embed here.
+
+## Components
+| Component | Responsibility | Runs where | Notes |
+|---|---|---|---|
+|   |   |   |   |
+
+## Interactions
+- Key request/response flows
+- External integrations
+
+## Non-functional Requirements
+- Performance, scalability, security, observability
+
+## Constraints & Assumptions
+- …
+
+## Alternatives Considered
+- …
+
+## Risks & Mitigations
+- …
+
+## Dependencies
+- …
+
+## Open Questions
+- …

_specs/intorduced-in-app-purchase/v1/index.md

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+---
+layout: spec
+epic: MXOP-0030
+family: intorduced in app purchase
+version: v1
+title: intorduced in app purchase
+status: in-progress
+stage: dev
+spec_version: "1.0.0"
+owner: "@pranavwani"
+team: ""
+created_at: 2025-09-11
+updated_at:
+tags: []
+changelog:
+  - date: 2025-09-11
+    text: "Initial scaffold from issue #59"
+nav_title: "Overview"
+nav_order: 0
+---
+## Summary
+intorduced in app purchase soon
+
+## Scope
+intorduced in app purchase
+
+## Risks & assumptions
+intorduced in app purchase
+
+## Related Docs
+- [High-Level Design](./hld.md)
+- [Low-Level Design](./lld.md)
+- [Rollout & Ops](./rollout-ops.md)
+- [QA / Test Plan](./qa-test.md)
+
+## Related Links
+- intorduced in app purchase

_specs/intorduced-in-app-purchase/v1/lld.md

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+---
+layout: spec
+title: intorduced in app purchase — LLD
+nav_title: "Low-Level Design"
+nav_order: 20
+---
+# LLD
+## Module Breakdown
+- Module A/B with public interfaces and internals
+
+## Data Structures & Storage
+- Entities/DTOs, schemas, migrations
+
+## Algorithms & State
+- Pseudocode / state machines
+
+## Configuration
+```yaml
+feature_enabled: true
+timeout_ms: 5000
+retry: { attempts: 3 }
+```
+
+## Error Handling
+- Taxonomy, retries, idempotency, backoff
+
+## Logging & Instrumentation
+- Logs, metrics (names/types/labels), tracing spans
+
+## Security Details
+- Permissions, secrets, validation
+
+## I18n/Accessibility (if applicable)
+- …
+
+## Edge Cases
+- …

_specs/intorduced-in-app-purchase/v1/qa-test.md

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+---
+layout: spec
+title: intorduced in app purchase — QA / Test Plan
+nav_title: "QA / Test Plan"
+nav_order: 60
+---
+# QA / Test Plan
+## Strategy
+- Unit / integration / E2E
+
+## Coverage vs Acceptance Criteria
+- Trace each AC to tests
+
+## Test Data & Environments
+- …
+
+## Performance / Security / UAT
+- …
+
+## Sign-off Checklist
+- …

_specs/intorduced-in-app-purchase/v1/rollout-ops.md

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+---
+layout: spec
+title: intorduced in app purchase — Rollout & Ops
+nav_title: "Rollout & Ops"
+nav_order: 50
+---
+# Rollout & Ops
+## Launch Plan
+- Flags/config, migrations/backfill, rollback
+
+## Monitoring & SLOs
+- SLIs/SLOs, dashboards, alerts
+
+## Runbook
+- On-call steps; rollback strategy
+
+## Post-launch
+- Success criteria; cleanup tasks