Unify enrichment tracking and outcome-based status

Make common_tracker_patterns and common_third_parties share one
enrichment-tracking model and fix the misleading proboctl status.

Both tables now carry the enrichment JSONB provenance payload, an
enrichment_attempts counter, and a last_enrichment_attempt_at clock.
On common_tracker_patterns the enriched_at done-flag is renamed to
last_enrichment_attempt_at and stamped at claim time, so it is truthful
to "attempt" rather than "success". A row is considered to have been
through the workflow when it carries an enrichment payload, not when a
timestamp is set, which lets stale recovery key off the payload being
absent with budget remaining, exactly like common_third_parties.

The claim path reads the attempt counter and timestamp back via
RETURNING so the in-memory receiver matches the database clock instead
of a separate app-side time.Now.

The enricher builds a per-field provenance payload (description and
third-party outcomes plus the mapping attribution) and persists it via
UpdateEnrichment, named to mirror the common-third-party sibling. The
common pattern enrichment worker gains a max-attempts ceiling so a
permanently failing row stops looping.

proboctl now shows "enriched" only when every field the last run
recorded an outcome for resolved a value, otherwise "partial (X/Y)",
replacing the misleading "enriched (no description)" label.

Signed-off-by: Émile Ré <emile@probo.com>

pkg/coredata/migrations/20260615T161615Z.sql

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+-- Copyright (c) 2026 Probo Inc <hello@probo.com>.
+--
+-- Permission to use, copy, modify, and/or distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+-- REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+-- AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+-- INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+-- LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+-- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+-- PERFORMANCE OF THIS SOFTWARE.
+
+-- Unify the enrichment-tracking model across common_tracker_patterns and
+-- common_third_parties. common_tracker_patterns gains a JSONB provenance
+-- payload and an attempt counter (mirroring common_third_parties), and its
+-- enriched_at done-flag is renamed to last_enrichment_attempt_at, stamped at
+-- claim time. "Enriched" is now detected via the enrichment payload presence,
+-- not the timestamp.
+ALTER TABLE common_tracker_patterns
+    ADD COLUMN enrichment          JSONB,
+    ADD COLUMN enrichment_attempts INTEGER NOT NULL DEFAULT 0;
+
+-- The DEFAULT only backfills existing rows; drop it so inserts must supply
+-- the value explicitly.
+ALTER TABLE common_tracker_patterns
+    ALTER COLUMN enrichment_attempts DROP DEFAULT;
+
+ALTER TABLE common_tracker_patterns
+    RENAME COLUMN enriched_at TO last_enrichment_attempt_at;
+
+-- common_third_parties already carries enrichment/enrichment_attempts; give
+-- it the same explicit last-attempt timestamp (previously only recorded in
+-- the enrichment JSON) so the stale-recovery clock has a dedicated column.
+ALTER TABLE common_third_parties
+    ADD COLUMN last_enrichment_attempt_at TIMESTAMP WITH TIME ZONE;