Founder resources: persistent "never show me these again" opt-out (v1.61.2.0)

[time-attack]

What

Adds a persistent "Never show me these again" opt-out for the office-hours Founder Resources phase (Paul Graham essays, Garry Tan / YC videos). Anchored to upstream issue garrytan#538, which reported that the end-of-session promotional content fires every run and memory instructions to suppress it keep getting overridden.

• New founder_resources config key in bin/gstack-config (default true, validated true/false), ships with the managed runtime.
• Judgment overlay /office-hours -- kill the glazing in the final step garrytan/gstack#538 (GSTACK2_FIX_538_FOUNDER_RESOURCES_OPTOUT, targets office-hours): check the key before sharing resources, skip silently when false, always include the never-again option when shown, persist via gstack-config set founder_resources false, one-line confirmation with the re-enable command, never re-pitch.
• Executable regression evaluator + fixture (evals/parity/regressions/pr-538.json); pinned counts bumped (30 overlays, 5,032 parity checks); gstack2 tree regenerated.
• CHANGELOG entry + VERSION v1.61.2.0.

Why not a template edit

First attempt edited office-hours/sections/design-and-handoff.md.tmpl directly; that breaks gen:gstack2 ("Unable to carve canonical section") because section templates are pinned at GSTACK2_BASE_SHA while the SECTION resolver inlines from the working tree. Reverted in favor of the overlay mechanism, matching garrytan#879/garrytan#886.

Testing

• bun run test:gstack2 passes (all files, exit 0).
• bun test passes except the pre-existing audit-compliance.test.ts failure (extension/background.js was removed on main in ab4e9ae, an ancestor of this branch's base).
• Config key round-trip smoke-tested: default true, set/get false, invalid value falls back with warning.
• Diff-based E2E evals (auto-decide-preserved, brain-privacy-gate, office-hours-brain-writeback): results in PR comment / below.

🤖 Generated with Claude Code

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Summary by cubic

Adds a persistent “Never show me these again” opt-out for the office-hours Founder Resources. Once declined, the resources phase is skipped silently in all future sessions. Addresses garrytan#538.

• New Features

  • Added founder_resources config key in bin/gstack-config (default true, validated true/false).
  • Office-hours checks the key before sharing resources; if false, it skips with no mention.
  • When shown, always include “Never show me these again”; selecting it runs gstack-config set founder_resources false and prints a one-line confirmation.
  • Added an executable regression for this behavior; parity and overlay counts updated.

• Migration

  • Opt out: gstack-config set founder_resources false
  • Re-enable: gstack-config set founder_resources true

^{Written for commit a5dd6a2. Summary will update on new commits.}

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