Adds the K8s plumbing for the Reddit FIRE-examples ingest path:
- ExternalSecret fire-planner-examples-reddit (Reddit OAuth from
Vault secret/viktor.trading_bot_reddit_{client_id,client_secret}).
- ExternalSecret fire-planner-examples-claude (claude-agent-service
bearer from Vault secret/claude-agent-service.api_bearer_token).
- kubernetes_job_v1.examples_bulk_ingest — one-shot bulk Job toggled
via var.run_examples_bulk_ingest (default false). Timestamp-named so
each (true) transition creates a fresh Job; lifecycle ignores the
name so re-plans don't propose phantom renames.
- kubernetes_cron_job_v1.examples_weekly_delta — Sunday 04:00 UTC
--top=week --limit=200 incremental run.
Both runners share the env_from plumbing of the existing recompute
CronJob (fire-planner-secrets, fire-planner-db-creds,
wealthfolio-sync-db-creds) plus examples-specific vars
(REDDIT_USER_AGENT, LLAMA_CPP_BASE_URL, CLAUDE_AGENT_SERVICE_URL,
plus the three secret-backed env vars).
Plan-only this commit — actual apply lands in Task 17 after the
ingest image build.