fix: pin pg_textsearch to main@ad4f832 to fix ResourceOwnerEnlarge crash

[pyramation]

Summary

Pins pg_textsearch from the v0.6.0 prerelease tag to commit ad4f832 on main, which includes the fix for the ResourceOwnerEnlarge called after release started crash (upstream PR #248, issue #247).

Why: v0.6.0 (and v0.5.1, the latest stable release) both predate the fix. The crash occurs during ROLLBACK TO SAVEPOINT when pg_textsearch hooks attempt to acquire resources during cleanup — PostgreSQL 17's strict resource owner tracking rejects this. No tagged release includes the fix yet.

What changed:

• Dockerfile: ARG PG_TEXTSEARCH_VERSION=0.6.0 → ARG PG_TEXTSEARCH_COMMIT=ad4f8328780367526fce8997207fa701ef4d014d
• Dockerfile: Clone switched from --branch v0.6.0 --depth 1 to full clone + git checkout ${PG_TEXTSEARCH_COMMIT} (shallow clone can't checkout arbitrary commits)
• Makefile: Removed stale CREATE EXTENSION pgsodium; from the test target (pgsodium was already removed from the Dockerfile in a prior merge)

Updates since last revision

• Fixed incorrect commit hash: the original ae1c221 did not exist in the pg_textsearch repo (caused amd64 CI build failure). The correct commit for PR #248 is ad4f832. Now using the full 40-character hash for robustness.
• Removed pgsodium from the Makefile test target to sync with the Dockerfile (which no longer builds pgsodium).
• Both amd64 and arm64 Docker builds pass CI.

Review & Testing Checklist for Human

• Verify the pinned commit is correct: Commit ad4f832 is titled "crash when creating BM25 index on temp table" — confirm this actually addresses the ResourceOwnerEnlarge crash during ROLLBACK TO SAVEPOINT, not a different issue
• End-to-end validation: Merge this PR, publish the new GHCR image, then re-run the constructive-db CI (especially application/app tests) to confirm the ResourceOwnerEnlarge errors are gone
• Build time impact: The full repo clone (no --depth 1) may be slower; consider git clone --depth N if build times regress noticeably

Suggested test plan: Merge → trigger GHCR image publish → retrigger constructive-db PR #562 CI → verify all 20 checks pass (the test (application/app) job was the one failing with ResourceOwnerEnlarge).

Notes

• Once a tagged release of pg_textsearch includes the fix, switch back to a version pin for reproducibility
• Requested by @pyramation
• Devin Session

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[devin-ai-integration]

Devin Review found 1 potential issue.

View 2 additional findings in Devin Review.

[devin-ai-integration]

🟡 Incorrect comment states latest release is v0.5.1 when old code used v0.6.0

The comment on line 8 says "No tagged release includes this fix yet (latest release is v0.5.1)" but the previous Dockerfile was using PG_TEXTSEARCH_VERSION=0.6.0, meaning v0.6.0 exists as a tagged release. This misleading comment could confuse maintainers about when to switch back to a tagged release, potentially causing them to miss a future release that actually includes the fix.

Suggested change

	# No tagged release includes this fix yet (latest release is v0.5.1)
	# No tagged release includes this fix yet (latest release is v0.6.0)

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