fix(cli): improve missing-context recovery - #1634

Missing org/project context now offers one copyable issue list retry preserving search and output flags, compact lists of other organizations and projects, and one project-list example.

For an authenticated, non-interactive run with no org/project context (fictional names below):

sentry issue list --query is:unresolved --period 24h --limit 5 --sort date --json

Before — organization-only guidance; the agent must discover a project and reconstruct its command. Abbreviated example:

Specify one of your organizations:
  example-org
  another-org
List a project: sentry project list <org>/

After — one retry, compact alternatives, and one project-list example. Abbreviated example:

Or:
  - Retry example:
    sentry issue list 'example-org/web' --limit 5 --sort date --period '24h' --query='is:unresolved' --json
  - Other available orgs: another-org
  - Other available projects: example-org/api, another-org/worker
  - List projects example: sentry project list 'example-org/'

Discovery samples up to three projects in each of three organizations, respects configured org scope, and does not save defaults. Navigation keywords become explicit --cursor first retries; raw API cursors are preserved.