docs: add implementation plan, ADRs, and task tracking system

- Add comprehensive 8-phase implementation plan (docs/plan.md)
- Add 28 Architecture Decision Records (docs/adr/) covering all phases
- Add task tracking system with 283+ task files (docs/stories/)
- Add task generator script for automated task file creation
- Add reference playbooks and requirements documentation

This commit establishes the complete planning foundation for the Go
Platform implementation, documenting all architectural decisions and
providing detailed task breakdown for Phases 0-8.

docs/stories/phase0/0.3.1-install-gouberorgzap.md

@@ -0,0 +1,33 @@
+# Task 0.3.1: Install Logging Dependencies
+
+## Metadata
+- **Task ID**: 0.3.1
+- **Title**: Install Logging Dependencies
+- **Phase**: 0 - Project Setup & Foundation
+- **Section**: 0.3 Logging Foundation
+- **Status**: Pending
+- **Priority**: High
+- **Estimated Time**: 5 minutes
+- **Dependencies**: 0.1.1
+
+## Description
+Install the Zap logging library for structured logging.
+
+## Requirements
+- Install `go.uber.org/zap` v1.26.0+
+- Add to `go.mod` with proper version constraints
+
+## Implementation Steps
+1. Run `go get go.uber.org/zap@v1.26.0`
+2. Run `go mod tidy`
+3. Verify package in `go.mod`
+
+## Acceptance Criteria
+- [ ] Zap is listed in `go.mod`
+- [ ] Version is v1.26.0 or later
+- [ ] `go mod verify` passes
+
+## Related ADRs
+- [ADR-0005: Logging Framework](../../adr/0005-logging-framework.md)
+- [ADR-0012: Logger Interface Design](../../adr/0012-logger-interface-design.md)
+