fix: API field types, add host command, VPC CIDR fix, integration tests

  - Fix JSON unmarshal: volume.CreatedAt, host.CPUCores/VMCount, k8s.MinMemory/MinCPUNumber
  - Fix VPC/network CIDR field name (getcIDR -> cIDR)
  - Fix VPC create required fields, network.IsPublic as query param
  - Add host list command, resource quota subcommand
  - Add network create VPC tier flags (--vpc, --gateway, --netmask, --acl)
  - Make snapshot-policy list require --volume per API spec
  - Add integration lifecycle test suite
  - Update CHANGELOG and RELEASE_NOTES for 0.0.3

Author: ditahkk

CHANGELOG.md

@@ -5,6 +5,30 @@ All notable changes to zcp will be documented in this file.
 Format based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), using
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.0.3] - 2026-03-27
+
+### Added
+
+- **`host list` command**: Lists hypervisor hosts with CPU cores, VM count, and status
+- **`resource quota` subcommand**: Shows resource quota limits with unit/used/available/maximum
+- **Network VPC tier flags**: `--vpc`, `--gateway`, `--netmask`, `--acl` on `network create`
+- **Integration test suite**: Full lifecycle tests (SSH key, security group, instance,
+  volume, snapshot, stop/start/destroy) plus parallel smoke tests across 10 resource types
+
+### Fixed
+
+- **JSON unmarshal errors**: `volume.createdTimeStamp` (string to int64),
+  `host.cpuCores`/`vmCount` (int to string), `kubernetes.minMemory`/`minCpuNumber`
+  (string to int)
+- **VPC/network CIDR field**: Corrected from `getcIDR` to `cIDR` (API spec was wrong)
+- **VPC create**: `description` and `publicLoadBalancerProvider` now sent as required fields
+- **`network.IsPublic`**: Moved from JSON body to query parameter per API spec
+- **`snapshot-policy list`**: Now requires `--volume` flag (matches API requirement)
+
+**Full Changelog**: https://github.com/zsoftly/zcp-cli/compare/0.0.2...0.0.3
+
+---
+
 ## [0.0.2] - 2026-03-23
 
 ### Added

RELEASE_NOTES.md

@@ -1,30 +1,54 @@
-# zcp 0.0.2 Release Notes
+# zcp 0.0.3 Release Notes
 
 ## What's New
 
-### Default zone per profile
+### API field type fixes
 
-Stop passing `--zone` on every command. Set it once:
+Fixed JSON unmarshal errors across multiple resources where the live API returns
+different types than the OpenAPI spec documents:
+
+- `volume` — `createdTimeStamp` (string to int64)
+- `host` — `cpuCores`, `vmCount` (int to string)
+- `kubernetes` — `minMemory`, `minCpuNumber` (string to int)
+- `vpc` / `network` — CIDR field name corrected (`getcIDR` to `cIDR`)
+
+### New `host list` command
 
 ```bash
-zcp zone list                  # find your zone UUID
-zcp zone use <uuid>            # save it to your active profile
+zcp host list
 ```
 
-Every command that previously required `--zone` now falls back to the profile default
-automatically. You can still override per-command:
+Lists all hypervisor hosts with CPU cores, VM count, and status.
+
+### Network create supports VPC tiers
 
 ```bash
-zcp instance list              # uses default zone
-zcp instance list --zone <uuid>  # overrides for this call
+zcp network create --name my-tier --offering <uuid> --vpc <uuid> \
+  --gateway 10.1.1.1 --netmask 255.255.255.0
 ```
 
-To clear the default:
+New flags: `--vpc`, `--gateway`, `--netmask`, `--acl`
+
+### Resource quota subcommand
 
 ```bash
-zcp zone use ""
+zcp resource quota
 ```
 
+### Integration test suite
+
+Full lifecycle tests against the live API:
+
+```bash
+go test -tags integration -v -timeout 30m ./tests/integration/
+```
+
+### Other fixes
+
+- `snapshot-policy list` now requires `--volume` (matches API spec)
+- `network.IsPublic` moved from body to query parameter (matches API spec)
+- VPC `description` and `publicLoadBalancerProvider` now required in create
+
 ---
 
 ## Installation
@@ -58,4 +82,4 @@ Download the binary for your platform from the assets below, make it executable,
 | Windows | amd64        | `zcp-windows-amd64.exe` |
 | Windows | arm64        | `zcp-windows-arm64.exe` |
 
-**Full Changelog**: https://github.com/zsoftly/zcp-cli/compare/0.0.1...0.0.2
+**Full Changelog**: https://github.com/zsoftly/zcp-cli/compare/0.0.2...0.0.3