-- Durable browser-corpus projections and append-only review evidence.
CREATE TABLE capture_labels (
  capture_id TEXT PRIMARY KEY REFERENCES captures(capture_id) ON DELETE RESTRICT,
  classification_json TEXT NOT NULL CHECK(length(classification_json) BETWEEN 2 AND 4096),
  revision INTEGER NOT NULL DEFAULT 0 CHECK(revision >= 0),
  labeled_at TEXT NOT NULL
);
CREATE TABLE capture_label_evidence (
  evidence_id INTEGER PRIMARY KEY,
  capture_id TEXT NOT NULL REFERENCES captures(capture_id) ON DELETE RESTRICT,
  replaced_revision INTEGER NOT NULL CHECK(replaced_revision >= 0),
  classification_json TEXT NOT NULL CHECK(length(classification_json) BETWEEN 2 AND 4096),
  replaced_at TEXT NOT NULL,
  UNIQUE(capture_id, replaced_revision)
);
CREATE INDEX capture_label_evidence_capture ON capture_label_evidence(capture_id, evidence_id);
CREATE INDEX captures_blob_sha256 ON captures(blob_sha256);
CREATE INDEX jobs_capture_id ON jobs(capture_id);
CREATE INDEX ocr_runs_capture_id ON ocr_runs(capture_id);
CREATE INDEX runtime_failures_capture_subject ON runtime_failures(subject_type, subject_id);
CREATE INDEX lineage_child_id ON lineage(child_id);
CREATE INDEX lineage_parent_id ON lineage(parent_id);
CREATE TABLE capture_rejections (
  rejection_id INTEGER PRIMARY KEY,
  capture_id TEXT NOT NULL UNIQUE REFERENCES captures(capture_id) ON DELETE RESTRICT,
  rejected_at TEXT NOT NULL
);
CREATE TABLE capture_deletion_intents (
  blob_sha256 TEXT PRIMARY KEY REFERENCES blobs(sha256) ON DELETE RESTRICT,
  capture_id TEXT NOT NULL UNIQUE CHECK(length(capture_id) BETWEEN 8 AND 64),
  byte_size INTEGER NOT NULL CHECK(byte_size > 0 AND byte_size <= 67108864),
  capture_state TEXT NOT NULL CHECK(length(capture_state) BETWEEN 1 AND 32),
  received_at TEXT NOT NULL CHECK(length(received_at) BETWEEN 1 AND 40),
  receipt_token TEXT NOT NULL UNIQUE CHECK(length(receipt_token) BETWEEN 1 AND 128),
  failure_reason TEXT,
  revision INTEGER NOT NULL CHECK(revision >= 0),
  created_at TEXT NOT NULL CHECK(length(created_at) BETWEEN 1 AND 40)
);