migrate orion repo into monorepo structure

go/migrations/000001_humans.down.sql

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+DROP TABLE IF EXISTS humans;

go/migrations/000001_humans.up.sql

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+CREATE TABLE humans (
+  id TEXT PRIMARY KEY,
+  email VARCHAR(255) NOT NULL UNIQUE,
+  created_at TIMESTAMPTZ DEFAULT NOW()
+);

go/migrations/000002_networks.down.sql

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+DROP TABLE IF EXISTS network_members;
+DROP TABLE IF EXISTS networks;

go/migrations/000002_networks.up.sql

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+CREATE TABLE networks (
+  id TEXT PRIMARY KEY,
+  name VARCHAR(255) NOT NULL,
+  admin_email VARCHAR(255) NOT NULL,
+  created_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE TABLE network_members (
+  network_id TEXT NOT NULL REFERENCES networks(id) ON DELETE CASCADE,
+  email VARCHAR(255) NOT NULL,
+  joined_at TIMESTAMPTZ DEFAULT NOW(),
+  PRIMARY KEY (network_id, email)
+);

go/migrations/000003_network_capacity.down.sql

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+ALTER TABLE networks
+  DROP COLUMN IF EXISTS open_stream_capacity,
+  DROP COLUMN IF EXISTS open_stream_count;

go/migrations/000003_network_capacity.up.sql

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+ALTER TABLE networks
+  ADD COLUMN open_stream_capacity INTEGER NOT NULL DEFAULT 5,
+  ADD COLUMN open_stream_count INTEGER NOT NULL DEFAULT 0;

go/migrations/000004_particles.down.sql

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+DROP TABLE IF EXISTS particle_members;
+DROP TABLE IF EXISTS particles;
+DROP TYPE IF EXISTS visibility_mode;
+DROP TYPE IF EXISTS particle_type;

go/migrations/000004_particles.up.sql

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+CREATE TYPE particle_type AS ENUM (
+  'stream', 'folder', 'media', 'file', 'text', 'quest', 'paper', 'think'
+);
+
+CREATE TYPE visibility_mode AS ENUM ('network_all', 'custom');
+
+CREATE TABLE particles (
+  id TEXT PRIMARY KEY,
+  type particle_type NOT NULL,
+  network_id TEXT NOT NULL REFERENCES networks(id) ON DELETE CASCADE,
+  parent_id TEXT REFERENCES particles(id) ON DELETE CASCADE,
+  created_by_email VARCHAR(255) NOT NULL,
+  visibility visibility_mode NOT NULL DEFAULT 'network_all',
+  data JSONB NOT NULL DEFAULT '{}',
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE particle_members (
+  particle_id TEXT NOT NULL REFERENCES particles(id) ON DELETE CASCADE,
+  email VARCHAR(255) NOT NULL,
+  added_at TIMESTAMPTZ DEFAULT NOW(),
+  PRIMARY KEY (particle_id, email)
+);
+
+-- Indexes
+CREATE INDEX idx_particles_parent_updated ON particles(parent_id, updated_at DESC);
+CREATE INDEX idx_particles_network_root ON particles(network_id, updated_at DESC) WHERE parent_id IS NULL;
+CREATE INDEX idx_particles_open_streams ON particles(network_id) WHERE type = 'stream' AND data->>'status' = 'open';
+CREATE INDEX idx_particle_members_email ON particle_members(email, particle_id);

go/migrations/000005_depot.down.sql

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+DROP INDEX IF EXISTS idx_depot_objects_orphaned;
+DROP TABLE IF EXISTS depot_objects;

go/migrations/000005_depot.up.sql

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+CREATE TABLE depot_objects (
+    id TEXT PRIMARY KEY,
+    name VARCHAR(255) NOT NULL,
+    content_type VARCHAR(255) NOT NULL,
+    content_length BIGINT NOT NULL,
+    bucket_name VARCHAR(255) NOT NULL,
+    object_key TEXT NOT NULL,
+    contains_content BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_depot_objects_orphaned
+ON depot_objects(created_at) WHERE contains_content = FALSE;

go/migrations/000006_particle_tracking.down.sql

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+DROP INDEX IF EXISTS idx_particle_acks_particle;
+DROP INDEX IF EXISTS idx_particle_seen_email;
+DROP TABLE IF EXISTS particle_acks;
+DROP TABLE IF EXISTS particle_seen;

go/migrations/000006_particle_tracking.up.sql

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+-- Seen tracking: private per-user state
+CREATE TABLE particle_seen (
+    particle_id TEXT NOT NULL REFERENCES particles(id) ON DELETE CASCADE,
+    email VARCHAR(255) NOT NULL,
+    seen_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    PRIMARY KEY (particle_id, email)
+);
+
+-- Ack tracking: public, visible to others
+CREATE TABLE particle_acks (
+    particle_id TEXT NOT NULL REFERENCES particles(id) ON DELETE CASCADE,
+    email VARCHAR(255) NOT NULL,
+    acked_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    PRIMARY KEY (particle_id, email)
+);
+
+-- Index for bulk "which particles has this user seen?"
+CREATE INDEX idx_particle_seen_email ON particle_seen(email, particle_id);
+
+-- Index for "who acked this particle?"
+CREATE INDEX idx_particle_acks_particle ON particle_acks(particle_id);

go/migrations/000007_visibility_inherited.down.sql

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+-- PostgreSQL does not support removing enum values.
+-- To reverse: UPDATE particles SET visibility = 'network_all' WHERE visibility = 'inherited';

go/migrations/000007_visibility_inherited.up.sql

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+ALTER TYPE visibility_mode ADD VALUE 'inherited';