<?xml version="1.0" encoding="UTF-8"?><database name="briefrhythm" schema="public" type="PostgreSQL - 18.4 (Ubuntu 18.4-1.pgdg24.04+1)">
   <tables>
      <table name="brief_tags" remarks="{&quot;what&quot;:&quot;A row is one tag assignment from a source to an entity with a confidence score.&quot;,&quot;why&quot;:&quot;Without it, entity tags from different sources cannot be distinguished or weighted by reliability.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:44.570589338+00:00&quot;}" schema="public" type="TABLE">
         <column autoUpdated="false" defaultValue="'repo'::text" digits="0" id="0" name="kind" nullable="false" remarks="{&quot;what&quot;:&quot;Entity type the tag applies to, e.g. 'repo'; default 'repo'.&quot;,&quot;why&quot;:&quot;Distinguishes tag namespaces across entity types; without it, same entity_key could collide across types.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:44.624591020+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="1" name="entity_key" nullable="false" remarks="{&quot;what&quot;:&quot;Unique identifier of the tagged entity within its kind.&quot;,&quot;why&quot;:&quot;Identifies which entity the tag belongs to; without it, tags cannot be attached to a specific item.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:44.643311448+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="2" name="tag" nullable="false" remarks="{&quot;what&quot;:&quot;The tag label itself, e.g. 'machine-learning'.&quot;,&quot;why&quot;:&quot;The actual classification term; without it, no tag content exists.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:44.656394012+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="3" name="source" nullable="false" remarks="{&quot;what&quot;:&quot;Origin of the tag assignment, e.g. 'github' or 'manual'.&quot;,&quot;why&quot;:&quot;Tracks provenance so conflicting tags from different sources can be compared or filtered.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:44.729782685+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="0.9" digits="8" id="4" name="confidence" nullable="false" remarks="{&quot;what&quot;:&quot;Numeric confidence score for the tag, from 0 to 1; default 0.9.&quot;,&quot;why&quot;:&quot;Allows weighting or thresholding tags by reliability; without it, all tags are equally trusted.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:44.738627587+00:00&quot;}" size="8" type="float4" typeCode="7"/>
         <column autoUpdated="false" defaultValue="now()" digits="6" id="5" name="created_at" nullable="false" remarks="{&quot;what&quot;:&quot;Timestamp when the tag assignment was created, in UTC.&quot;,&quot;why&quot;:&quot;Enables time-based auditing and freshness checks; without it, tag age is unknown.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:44.754930353+00:00&quot;}" size="35" type="timestamptz" typeCode="93"/>
         <primaryKey column="kind" sequenceNumberInPK="1"/>
         <primaryKey column="entity_key" sequenceNumberInPK="2"/>
         <primaryKey column="tag" sequenceNumberInPK="3"/>
         <primaryKey column="source" sequenceNumberInPK="4"/>
         <index name="brief_tags_pkey" unique="true">
            <column ascending="true" name="kind"/>
            <column ascending="true" name="entity_key"/>
            <column ascending="true" name="tag"/>
            <column ascending="true" name="source"/>
         </index>
         <index name="idx_brief_tags_key" unique="false">
            <column ascending="true" name="entity_key"/>
         </index>
         <index name="idx_brief_tags_tag" unique="false">
            <column ascending="true" name="tag"/>
         </index>
      </table>
      <table name="domain_brief" remarks="" schema="public" type="TABLE">
         <column autoUpdated="false" defaultValue="null" digits="0" id="0" name="domain" nullable="false" remarks="{&quot;what&quot;:&quot;域名文本，如 example.com，作为主键唯一标识一条记录。&quot;,&quot;why&quot;:&quot;缺少它则无法区分不同域名的摘要，主键约束失效。&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:03.829582806+00:00&quot;}" size="2147483647" type="text" typeCode="12">
            <child column="domain" foreignKey="Implied Constraint" implied="true" onDeleteCascade="false" schema="public" table="image_asset"/>
            <child column="domain" foreignKey="Implied Constraint" implied="true" onDeleteCascade="false" schema="public" table="page_brief"/>
         </column>
         <column autoUpdated="false" defaultValue="'{}'::jsonb" digits="0" id="1" name="brief" nullable="false" remarks="{&quot;what&quot;:&quot;JSONB 格式的摘要内容，默认空对象，可包含任意结构化信息。&quot;,&quot;why&quot;:&quot;没有它则摘要数据无处存放，下游消费方无法获取内容。&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:03.943574735+00:00&quot;}" size="2147483647" type="jsonb" typeCode="1111"/>
         <column autoUpdated="false" defaultValue="'{}'::text[]" digits="0" id="2" name="page_hashes" nullable="false" remarks="{&quot;what&quot;:&quot;文本数组，存储已抓取页面的哈希值，用于检测页面变化。&quot;,&quot;why&quot;:&quot;缺少它无法判断页面是否更新，导致摘要可能基于过期内容。&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:04.088585127+00:00&quot;}" size="2147483647" type="_text" typeCode="2003"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="3" name="brief_ref" nullable="true" remarks="{&quot;what&quot;:&quot;可空文本，指向外部系统或存储中的摘要引用标识。&quot;,&quot;why&quot;:&quot;没有它则无法关联外部存储的详细摘要，引用关系断裂。&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:04.149987238+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="false" digits="0" id="4" name="complete" nullable="false" remarks="{&quot;what&quot;:&quot;布尔值，标记摘要是否已完整生成，默认 false。&quot;,&quot;why&quot;:&quot;缺少它无法区分待处理与已完成记录，影响调度和展示逻辑。&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:04.179775010+00:00&quot;}" size="1" type="bool" typeCode="-7"/>
         <column autoUpdated="false" defaultValue="null" digits="6" id="5" name="certified_at" nullable="true" remarks="{&quot;what&quot;:&quot;可空时间戳，记录摘要通过认证或审核的时间。&quot;,&quot;why&quot;:&quot;没有它则无法追踪认证状态，合规审计缺失时间依据。&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:04.194342930+00:00&quot;}" size="35" type="timestamptz" typeCode="93"/>
         <column autoUpdated="false" defaultValue="now()" digits="6" id="6" name="created_at" nullable="false" remarks="{&quot;what&quot;:&quot;记录创建时间，默认当前时间，不可为空。&quot;,&quot;why&quot;:&quot;缺少它无法追溯记录何时入库，影响生命周期管理。&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:04.264568797+00:00&quot;}" size="35" type="timestamptz" typeCode="93"/>
         <column autoUpdated="false" defaultValue="now()" digits="6" id="7" name="updated_at" nullable="false" remarks="{&quot;what&quot;:&quot;记录最后更新时间，默认当前时间，不可为空。&quot;,&quot;why&quot;:&quot;缺少它无法判断数据新鲜度，缓存失效策略无法实现。&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:04.284454750+00:00&quot;}" size="35" type="timestamptz" typeCode="93"/>
         <primaryKey column="domain" sequenceNumberInPK="1"/>
         <index name="domain_brief_pkey" unique="true">
            <column ascending="true" name="domain"/>
         </index>
      </table>
      <table name="entity_brief" remarks="{&quot;what&quot;:&quot;A generated brief (markdown) with provenance and facts for a single entity.&quot;,&quot;why&quot;:&quot;Without it, briefs would need to be regenerated on every request and provenance would be lost.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:10.804272841+00:00&quot;}" schema="public" type="TABLE">
         <column autoUpdated="false" defaultValue="null" digits="0" id="0" name="kind" nullable="false" remarks="{&quot;what&quot;:&quot;Entity category (e.g., repo, issue) that scopes the entity_key.&quot;,&quot;why&quot;:&quot;Without it, entity_key alone would be ambiguous across different entity types.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:10.840689637+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="1" name="entity_key" nullable="false" remarks="{&quot;what&quot;:&quot;String key that uniquely identifies the entity within its kind.&quot;,&quot;why&quot;:&quot;Without it, multiple entities of the same kind would be indistinguishable.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:10.874180238+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="2" name="repo" nullable="true" remarks="{&quot;what&quot;:&quot;Repository identifier (e.g., 'owner/name') that the entity belongs to, if any.&quot;,&quot;why&quot;:&quot;Without it, you cannot tell which repository an entity came from.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:10.900804779+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="'{}'::jsonb" digits="0" id="3" name="facts" nullable="false" remarks="{&quot;what&quot;:&quot;JSON object of arbitrary key-value facts about the entity, used for brief generation.&quot;,&quot;why&quot;:&quot;Without it, the brief cannot be regenerated or verified against its source facts.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:10.945370259+00:00&quot;}" size="2147483647" type="jsonb" typeCode="1111"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="4" name="meaning" nullable="true" remarks="{&quot;what&quot;:&quot;A short explanation of the entity's significance, possibly derived from facts.&quot;,&quot;why&quot;:&quot;Without it, the brief lacks a concise explanation of the entity's purpose.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:10.984311259+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="5" name="meaning_source" nullable="true" remarks="{&quot;what&quot;:&quot;Source of the meaning, such as a file path or URL.&quot;,&quot;why&quot;:&quot;Without it, the origin of the meaning is unknown, reducing trust in the brief.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:11.012239629+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="6" name="meaning_model" nullable="true" remarks="{&quot;what&quot;:&quot;Model or algorithm used to generate the meaning, e.g., 'gpt-4'.&quot;,&quot;why&quot;:&quot;Without it, the provenance of the meaning is incomplete, making it hard to audit.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:11.077438515+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="7" name="brief_md" nullable="true" remarks="{&quot;what&quot;:&quot;Markdown-formatted brief text for the entity.&quot;,&quot;why&quot;:&quot;Without it, there is no brief to display or consume.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:11.109526179+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="8" name="merkle" nullable="true" remarks="{&quot;what&quot;:&quot;Hash of the brief content, used for integrity verification.&quot;,&quot;why&quot;:&quot;Without it, changes to the brief cannot be detected.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:11.138215524+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="now()" digits="6" id="9" name="updated_at" nullable="false" remarks="{&quot;what&quot;:&quot;Timestamp of the last update to this row, in UTC.&quot;,&quot;why&quot;:&quot;Without it, you cannot know how stale the brief is.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:12:11.187124167+00:00&quot;}" size="35" type="timestamptz" typeCode="93"/>
         <primaryKey column="kind" sequenceNumberInPK="1"/>
         <primaryKey column="entity_key" sequenceNumberInPK="2"/>
         <index name="entity_brief_pkey" unique="true">
            <column ascending="true" name="kind"/>
            <column ascending="true" name="entity_key"/>
         </index>
         <index name="idx_entity_brief_repo" unique="false">
            <column ascending="true" name="repo"/>
         </index>
      </table>
      <table name="image_asset" remarks="{&quot;what&quot;:&quot;Each row is one unique image content, identified by its SHA-256 hash.&quot;,&quot;why&quot;:&quot;Provides a single source of truth for image metadata, enabling alt-text coverage audits.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:53.677611483+00:00&quot;}" schema="public" type="TABLE">
         <column autoUpdated="false" defaultValue="null" digits="0" id="0" name="image_sha" nullable="false" remarks="{&quot;what&quot;:&quot;SHA-256 hash of the image bytes; primary key.&quot;,&quot;why&quot;:&quot;Uniquely identifies image content, preventing duplicate rows for identical images.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:53.692985039+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="1" name="domain" nullable="false" remarks="{&quot;what&quot;:&quot;Hostname of the site where the image was found.&quot;,&quot;why&quot;:&quot;Enables per-domain analysis of alt-text compliance and image sourcing.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:53.719571820+00:00&quot;}" size="2147483647" type="text" typeCode="12">
            <parent column="domain" foreignKey="Implied Constraint" implied="true" onDeleteCascade="false" schema="public" table="domain_brief"/>
         </column>
         <column autoUpdated="false" defaultValue="null" digits="0" id="2" name="url" nullable="true" remarks="{&quot;what&quot;:&quot;Full HTTP(S) URL pointing to the image file.&quot;,&quot;why&quot;:&quot;Allows fetching the image for verification or re-processing; nullable when URL is unavailable.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:53.822247331+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="3" name="alt_text" nullable="true" remarks="{&quot;what&quot;:&quot;Accessibility text describing the image content.&quot;,&quot;why&quot;:&quot;Provides screen-reader description; missing when null, which is the core accessibility gap.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:53.846464164+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="4" name="alt_source" nullable="true" remarks="{&quot;what&quot;:&quot;Origin of alt_text, e.g., 'manual', 'generated', or 'page'.&quot;,&quot;why&quot;:&quot;Indicates reliability of alt text; without it, trust in alt_text quality is unknown.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:53.862610503+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="false" digits="0" id="5" name="has_alt" nullable="false" remarks="{&quot;what&quot;:&quot;Boolean flag true when alt_text is non-empty.&quot;,&quot;why&quot;:&quot;Enables fast filtering of images lacking alt text without null checks.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T00:11:53.881011666+00:00&quot;}" size="1" type="bool" typeCode="-7"/>
         <primaryKey column="image_sha" sequenceNumberInPK="1"/>
         <index name="image_asset_pkey" unique="true">
            <column ascending="true" name="image_sha"/>
         </index>
         <index name="idx_image_asset_domain" unique="false">
            <column ascending="true" name="domain"/>
         </index>
      </table>
      <table name="page_brief" remarks="{&quot;what&quot;:&quot;A row per page content hash, holding extracted facts and processing state.&quot;,&quot;why&quot;:&quot;Without it, there is no single place to store per-page briefs, making retrieval and updates impossible.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:16.436087488+00:00&quot;}" schema="public" type="TABLE">
         <column autoUpdated="false" defaultValue="null" digits="0" id="0" name="content_hash" nullable="false" remarks="{&quot;what&quot;:&quot;Hash of the page's content; the unique key for a page.&quot;,&quot;why&quot;:&quot;Without it, pages cannot be uniquely identified, so updates and lookups would be ambiguous.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:16.466524970+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="1" name="domain" nullable="false" remarks="{&quot;what&quot;:&quot;Domain name (e.g., example.com) the page belongs to.&quot;,&quot;why&quot;:&quot;Without it, pages from different domains cannot be separated, and domain-specific processing is impossible.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:16.817700275+00:00&quot;}" size="2147483647" type="text" typeCode="12">
            <parent column="domain" foreignKey="Implied Constraint" implied="true" onDeleteCascade="false" schema="public" table="domain_brief"/>
         </column>
         <column autoUpdated="false" defaultValue="null" digits="0" id="2" name="url" nullable="true" remarks="{&quot;what&quot;:&quot;Full URL of the page; may be null if not captured.&quot;,&quot;why&quot;:&quot;Without it, the original source cannot be linked, making verification or re-fetching impossible.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:16.831075090+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="'{}'::jsonb" digits="0" id="3" name="facts" nullable="false" remarks="{&quot;what&quot;:&quot;JSON object of extracted facts keyed by fact name.&quot;,&quot;why&quot;:&quot;Without it, the page's extracted knowledge is lost, and downstream consumers have no data.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:16.856540923+00:00&quot;}" size="2147483647" type="jsonb" typeCode="1111"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="4" name="meaning_ref" nullable="true" remarks="{&quot;what&quot;:&quot;Identifier linking to a meaning record.&quot;,&quot;why&quot;:&quot;Without it, the page's semantic interpretation cannot be traced.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:16.889829696+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="5" name="verbatim_ref" nullable="true" remarks="{&quot;what&quot;:&quot;Identifier linking to a verbatim text record.&quot;,&quot;why&quot;:&quot;Without it, the exact source text cannot be retrieved.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:16.963315508+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="6" name="summary_ref" nullable="true" remarks="{&quot;what&quot;:&quot;Identifier linking to a summary record.&quot;,&quot;why&quot;:&quot;Without it, the generated summary cannot be located.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:16.974957883+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="null" digits="0" id="7" name="brief_ref" nullable="true" remarks="{&quot;what&quot;:&quot;Identifier linking to a brief record.&quot;,&quot;why&quot;:&quot;Without it, the final brief cannot be associated.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:17.003599736+00:00&quot;}" size="2147483647" type="text" typeCode="12"/>
         <column autoUpdated="false" defaultValue="'{}'::text[]" digits="0" id="8" name="image_shas" nullable="false" remarks="{&quot;what&quot;:&quot;Array of hashes of images found on the page.&quot;,&quot;why&quot;:&quot;Without it, image deduplication or retrieval is impossible.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:17.016297364+00:00&quot;}" size="2147483647" type="_text" typeCode="2003"/>
         <column autoUpdated="false" defaultValue="false" digits="0" id="9" name="complete" nullable="false" remarks="{&quot;what&quot;:&quot;Flag indicating whether all processing steps have finished.&quot;,&quot;why&quot;:&quot;Without it, consumers cannot know if the brief is ready for use.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:17.037434897+00:00&quot;}" size="1" type="bool" typeCode="-7"/>
         <column autoUpdated="false" defaultValue="null" digits="6" id="10" name="certified_at" nullable="true" remarks="{&quot;what&quot;:&quot;Timestamp when the brief was certified as accurate.&quot;,&quot;why&quot;:&quot;Without it, the trust level of the brief is unknown.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:17.119496147+00:00&quot;}" size="35" type="timestamptz" typeCode="93"/>
         <column autoUpdated="false" defaultValue="now()" digits="6" id="11" name="created_at" nullable="false" remarks="{&quot;what&quot;:&quot;Timestamp when the row was inserted.&quot;,&quot;why&quot;:&quot;Without it, audit and ordering by creation time is impossible.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:17.144574921+00:00&quot;}" size="35" type="timestamptz" typeCode="93"/>
         <column autoUpdated="false" defaultValue="now()" digits="6" id="12" name="updated_at" nullable="false" remarks="{&quot;what&quot;:&quot;Timestamp of the last update to the row.&quot;,&quot;why&quot;:&quot;Without it, stale data cannot be detected.&quot;,&quot;by&quot;:&quot;fleet-annotator-worker&quot;,&quot;at&quot;:&quot;2026-09-23T04:20:17.167300149+00:00&quot;}" size="35" type="timestamptz" typeCode="93"/>
         <primaryKey column="content_hash" sequenceNumberInPK="1"/>
         <index name="page_brief_pkey" unique="true">
            <column ascending="true" name="content_hash"/>
         </index>
         <index name="idx_page_brief_domain" unique="false">
            <column ascending="true" name="domain"/>
         </index>
      </table>
   </tables>
</database>
