ProseForge Agent v0.3.0

Onboarding + hygiene batch. Two-user pain points from v0.2.x feedback:
"is this command real or a scaffold?" and "how do I taste value in 60
seconds?"

Added

• Readiness badges on every operator report (Report.readiness,
  values ready | contract | planned). Non-ready reports render with a
  visible [contract] / [planned] badge in the title on markdown and
  terminal output, and expose readiness on JSON. The 106 dispatch
  sites that go through _planned_report all inherit "planned" for
  free; gateway slack/discord/signal/email/whatsapp check, remote
  execution backends (docker/ssh/singularity/modal/daytona), and the
  fake skills-hub search now emit "contract" explicitly.
• --strict global flag — refuses to run any command whose report
  is not readiness="ready", exiting 3 with a one-line pointer at the
  README readiness table. Placed next to --offline.
• pf-agent quickstart — first-60-seconds offline loop. Delegates
  to the existing DemoRunner, walks intake → phase plan → daily
  workbook → chapter draft → review → export dry-run → memory candidates
  → closeout → report pack, all with the fake provider, no API keys.
  Prints a numbered checklist and every artifact's path.
• Doctor onboarding check — warns on empty workspace with
  Run pf-agent quickstart for the 60-second offline tour.
• flake-hunt scheduled workflow — weekly pytest --count 10 -q
  on ubuntu × py3.11; opens an issue on failure. Uses pytest-repeat.
• integration pytest marker — labels the ~35 tests that touch a
  real subprocess, real HTTP over urllib, or a real sqlite file, so
  they can be run in isolation via pytest -m integration. New
  CI job runs the integration subset separately on every PR after the
  main matrix passes.
• Readiness table in both READMEs — replaces the earlier bullet
  list with a Command | Status | Notes table so a future PR can update
  one row instead of editing prose.

Changed

• CI now uses [ci] extras — pytest-rerunfailures + pytest-repeat.
  The main test job passes --reruns 2 --reruns-delay 1 to mask the
  handful of remaining time-sensitive tests while their causal
  rewrites land. Local pytest -q semantics unchanged.
• Two flaky tests rewritten causally —
  test_plugin_sandbox_timeout_returns_before_callback_finishes and
  test_run_returns_timeout_when_func_blocks now assert on
  Event.is_set() / a callback_finished flag rather than wall-clock
  ceilings.
• Doctor wiring wording — remote gateway and remote execution
  bindings now say "contract-only — see README readiness table",
  matching the new badge terminology.