feat: `kosli list environments`: add pagination and filtering flags

[dangrondahl]

Problem

kosli list environments currently calls GET /api/v2/environments/{org} with no query parameters and renders the full, unpaginated array. This doesn't scale for orgs with many environments and ignores the pagination/filtering parameters the API now exposes.

API parameters now available

From https://app.kosli.com/api/v2/openapi.json — GET /environments/{org}:

Parameter	Type	Notes
page	int (≥1)	Page number
per_page	int (1–50)	Page size
sort	enum	EnvironmentSortField, default name
sort_direction	enum	asc / desc, default asc
space_id	[]string	Filter by space; repeatable (OR)
name	string	Case-insensitive substring match
type	[]enum	Filter by env type (K8S, ECS, ...); repeatable
tag	[]string	Filter by key or key:value; repeatable

Proposed CLI changes

Add flags to kosli list environments mirroring the API:

• --page (int, default 1)
• --page-size (int, default e.g. 25; max 50)
• --sort (string)
• --sort-direction (string, asc|desc)
• --space-id (stringSlice, repeatable)
• --name (string)
• --type (stringSlice, repeatable)
• --tag (stringSlice, repeatable)

Pass these through as query parameters on the GET request. Default behaviour becomes paginated.

Breaking change consideration

Today the command returns all environments in one call. Introducing default pagination changes behaviour for users who rely on getting the full list (e.g. piping JSON to jq). Options:

1. Ship as breaking change under CLI V3 and document migration: use --page to iterate, or a future --all flag.
2. Add --all flag that auto-paginates and concatenates, for parity with current behaviour.

Definition of Done

• Flags added to cmd/kosli/listEnvironments.go and wired into the request URL
• Table and JSON output handle paginated response shape (EnvironmentListResponse) as well as legacy array shape, or commit fully to paginated shape under V3
• Integration tests cover: default pagination, --page/--page-size, each filter flag, sort
• kosli list environments --help documents new flags
• Migration note in V3 changelog / MIGRATING-v3.md

References

• Current command: cmd/kosli/listEnvironments.go