feat: add new SDK v2.55.0 commands (~60 subcommands)

[platinummonkey]

Summary

Implements CLI commands for all new API domains and methods added in datadog-api-client-go v2.55.0 (PR #78). Adds 3 new top-level command groups and ~60 new subcommands across 9 existing domains.

Changes

New command groups

• status-pages (cmd/status_pages.go) — Pages, components, and degradations CRUD (15 subcommands)
• code-coverage (cmd/code_coverage.go) — Branch and commit coverage summaries (2 subcommands)
• hamr (cmd/hamr.go) — High Availability Multi-Region connections (2 subcommands)

Enhanced existing commands

• integrations — Jira accounts/templates + ServiceNow instances/templates/users/groups (16 subcommands)
• cloud — OCI tenancy configs and products (6 subcommands)
• synthetics — Suites V2 API search/CRUD (5 subcommands)
• security — Content packs, bulk rule export, entity risk scores (5 subcommands)
• incidents — Global settings, handles, postmortem templates (11 subcommands)
• cases — Jira/ServiceNow linking, project moves, notification rules (10 subcommands)
• cicd — DORA deployment patching, flaky tests updates (2 subcommands)
• slos — SLO status query via V2 API (1 subcommand)
• rum — Replaced playlist/heatmap placeholders with working RUM Replay API

Infrastructure

• Enabled ~60 new unstable operations in pkg/client/client.go
• Registered new commands in cmd/root.go
• Updated docs/COMMANDS.md and CLAUDE.md with new command listings

Testing

• All new commands include unit tests (3 new test files, 6 updated)
• go build — clean
• go vet ./... — clean
• go test ./... -race — all pass
• All new commands use getClient() which supports OAuth; no endpoints on the API key deny-list

🤖 Generated with Claude Code