Add story-graph narrative system (campaigns, editors, runtime)

Introduce the narrative layer as a directed story-flow graph: an authored
campaign a player walks node by node, replacing the interim slot/chapter model.

Schema (migrations 015-021):
- mysteries, global NPC templates + named poses, per-user playthroughs
- story_nodes, terminals, utterances (the flow graph and dialogue trees)
- clean cutover: retire slot cutscenes/chapters/seen_dialogue

Runtime:
- New Game creates a playthrough bound to the JWT identity (dev test-user fallback)
- advance() walks the graph cutscene -> dialogue -> level -> ..., auto-skipping gates
- branching dialogue: player choices route out through node terminals

Admin authoring:
- NPC editor: upload named poses to the gupi MinIO bucket
- mystery graph editor: vertical node canvas, wiring, entrypoint, delete-by-click
- dialogue crafter: utterance tree, Tab to add child, 1/2 speaker, undo

Content authored via the manifest importer / admin panel and seeded for Glass
Harbour. MinIO added to the dev stack; dev container runs in development mode.

Also includes a folder-widget simplification (removes open/close) and a
resolveUserId auth helper.

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

migrations/015_narrative_layer.sql

@@ -0,0 +1,95 @@
+-- Narrative layer, first slice: a mystery (campaign) wrapping ordered level
+-- template versions, an authored NPC cast with named poses, scripted cutscenes,
+-- and a per-user playthrough that owns game state. Dialogue content is fixed and
+-- owned by the mystery; progress is a reference recorded in seen_dialogue.
+
+CREATE TABLE osint.mysteries (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  slug TEXT NOT NULL UNIQUE,
+  title TEXT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE osint.mystery_chapters (
+  mystery_id UUID NOT NULL REFERENCES osint.mysteries(id) ON DELETE CASCADE,
+  chapter_index INTEGER NOT NULL CHECK (chapter_index >= 1),
+  level_template_version_id UUID NOT NULL REFERENCES osint.level_template_versions(id),
+  PRIMARY KEY (mystery_id, chapter_index)
+);
+
+CREATE TABLE osint.npcs (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  mystery_id UUID NOT NULL REFERENCES osint.mysteries(id) ON DELETE CASCADE,
+  npc_key TEXT NOT NULL,
+  name TEXT NOT NULL,
+  role TEXT NOT NULL DEFAULT '',
+  default_pose_key TEXT,
+  UNIQUE (mystery_id, npc_key)
+);
+
+-- A pose is a named portrait variant backed by an immutable shared asset. A
+-- missing pose is never an error; the client falls back to the NPC default pose
+-- and then to no artwork.
+CREATE TABLE osint.npc_poses (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  npc_id UUID NOT NULL REFERENCES osint.npcs(id) ON DELETE CASCADE,
+  pose_key TEXT NOT NULL,
+  asset_id UUID REFERENCES osint.assets(id),
+  UNIQUE (npc_id, pose_key)
+);
+
+CREATE TABLE osint.cutscenes (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  mystery_id UUID NOT NULL REFERENCES osint.mysteries(id) ON DELETE CASCADE,
+  chapter_index INTEGER,
+  slot TEXT NOT NULL CHECK (slot IN ('mystery_intro','level_intro','level_debrief','mystery_resolution')),
+  title TEXT NOT NULL DEFAULT '',
+  -- Chapter-scoped slots carry a chapter; mystery-scoped slots do not.
+  CHECK (
+    (slot IN ('mystery_intro','mystery_resolution') AND chapter_index IS NULL)
+    OR (slot IN ('level_intro','level_debrief') AND chapter_index IS NOT NULL)
+  )
+);
+CREATE INDEX cutscenes_mystery_idx ON osint.cutscenes (mystery_id);
+
+-- One utterance. `kind` reserves the LLM path; `body_text` is required for
+-- scripted steps and null for generated ones. `advances_to` reserves branching;
+-- null means "next by sort_order".
+CREATE TABLE osint.dialogue_steps (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  cutscene_id UUID NOT NULL REFERENCES osint.cutscenes(id) ON DELETE CASCADE,
+  step_key TEXT NOT NULL,
+  sort_order INTEGER NOT NULL,
+  npc_id UUID NOT NULL REFERENCES osint.npcs(id),
+  pose_key TEXT,
+  kind TEXT NOT NULL DEFAULT 'scripted' CHECK (kind IN ('scripted','generated')),
+  body_text TEXT,
+  advances_to TEXT,
+  UNIQUE (cutscene_id, sort_order),
+  UNIQUE (cutscene_id, step_key),
+  CHECK ((kind = 'scripted' AND body_text IS NOT NULL) OR kind = 'generated')
+);
+
+-- The single object that owns a player's game state, bound to the JWT identity.
+CREATE TABLE osint.playthroughs (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id TEXT NOT NULL,
+  mystery_id UUID NOT NULL REFERENCES osint.mysteries(id) ON DELETE CASCADE,
+  current_chapter_index INTEGER NOT NULL DEFAULT 1 CHECK (current_chapter_index >= 1),
+  current_level_id UUID REFERENCES osint.levels(id) ON DELETE SET NULL,
+  status TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active','finished')),
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+CREATE INDEX playthroughs_user_idx ON osint.playthroughs (user_id, updated_at DESC);
+
+-- Progress as a reference to fixed authored dialogue, never a copy of its text.
+CREATE TABLE osint.seen_dialogue (
+  playthrough_id UUID NOT NULL REFERENCES osint.playthroughs(id) ON DELETE CASCADE,
+  cutscene_id UUID NOT NULL REFERENCES osint.cutscenes(id) ON DELETE CASCADE,
+  seen_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  PRIMARY KEY (playthrough_id, cutscene_id)
+);
+
+COMMENT ON TABLE osint.playthroughs IS 'Per-user instance of a mystery; owns current chapter and live level. Bound to the JWT sub (or the development test user).';
+COMMENT ON TABLE osint.dialogue_steps IS 'Fixed authored utterances owned by the immutable mystery. seen_dialogue references these ids; they are never cloned per playthrough.';