sciagent code + Gitea Actions CI/CD

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

be0/migrations/025_imagehub_task_review_events.sql

@@ -0,0 +1,25 @@
+-- ImageHub: structured review decisions. The task pipeline applies accept/acceptWithCorrections/
+-- reject moves, but until now the verdict survived only as a free-text Vietnamese audit string —
+-- not queryable, no reviewer/stage FK, no reject reason. This append-only table records every
+-- review decision so review history + per-reviewer accept/reject counters become real. Idempotent.
+-- Apply after 024 (no semicolons inside comments or string literals — the runner splitter is naive):
+--   docker exec -i initiative-postgres psql -U initiative -d initiatives < be0/migrations/025_imagehub_task_review_events.sql
+
+CREATE TABLE IF NOT EXISTS imagehub_task_review_events (
+  id BIGSERIAL PRIMARY KEY,
+  dataset_id UUID NOT NULL REFERENCES imagehub_datasets(id) ON DELETE CASCADE,
+  task_id UUID NOT NULL REFERENCES imagehub_tasks(id) ON DELETE CASCADE,
+  stage_id UUID REFERENCES imagehub_dataset_stages(id) ON DELETE SET NULL,
+  reviewer_user_id UUID REFERENCES users(id) ON DELETE SET NULL,
+  decision TEXT NOT NULL CHECK (decision IN ('accept','acceptWithCorrections','reject')),
+  note TEXT NOT NULL DEFAULT '',
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+-- Per-reviewer counters over a date window (the productivity panel query).
+CREATE INDEX IF NOT EXISTS idx_imagehub_review_events_reviewer
+  ON imagehub_task_review_events (dataset_id, reviewer_user_id, created_at);
+
+-- A task's review history (chronological).
+CREATE INDEX IF NOT EXISTS idx_imagehub_review_events_task
+  ON imagehub_task_review_events (task_id, created_at);