Integrate active community autoresearch fixes

[aa2246740]

Summary

This is a curated integration branch for several community PRs that had drifted behind main after the .auto/ layout migration and the @earendil-works package rename.

Integrated and rebased onto current main:

• fix(autoresearch): swallow browser launcher errors in /autoresearch export #63 — swallow browser launcher errors in /autoresearch export
• Make autoresearch auto-resume limit configurable #70 — configurable maxAutoResumeTurns, including null/0 for intentional unlimited auto-resume and natural-language /autoresearch loop-control inference
• fix(autoresearch): persist manual off state #61 — persist manual /autoresearch off outside the repo so session reconstruction does not reactivate just because .auto/log.jsonl exists
• fix: guard autoresearch shutdown context #57 — guard delayed auto-resume / shutdown UI cleanup against stale Pi extension contexts
• Add optional autoresearch hint model tool #65 — optional ask_autoresearch_hint advisory tool, updated for .auto/config.json, @earendil-works/*, and gated behind autoresearch mode

Notes from the rebase:

• Kept the current .auto/ layout and legacy fallback behavior.
• Kept /skill:autoresearch-create ... expansion intact when no .auto/prompt.md exists.
• Stored manual-off markers under the active Pi agent dir (<agent-dir>/autoresearch/state/) instead of hard-coding ~/.pi.
• Made inferred config creation create .auto/ before writing .auto/config.json.
• Left add: configurable auto-resume limit #62 out because Make autoresearch auto-resume limit configurable #70 is a superset.
• Left draft Add autoresearch-export and autoresearch-seed skills #31 out for now: it is still legacy-layout based and its knowledge-store shell test was not green in local diagnosis.

Verification

• npm test → 47/47 pass
• bash tests/finalize_test.sh → 19/19 pass
• npm pack --dry-run --json includes the new extensions/pi-autoresearch/hints.ts

[aa2246740]

Added one more safety fix from dogfooding: autoresearch now refuses to activate/init/run/log outside a git working tree unless .auto/config.json explicitly sets allowNoGit=true. This prevents unsafe nogit keep/discard loops that cannot commit or revert. Verification remains green: npm test 50/50 and finalize_test 19/19.

[davebcn87]

Hey, thanks for the effort of keeping it up-to-date, but I've been going through the issues and PRs one by one, I don't want to integrate all of them as they are. Let's keep the conversation in the original PRs for now.