feat: init

migrate/008_wiki.sql

@@ -0,0 +1,34 @@
+-- 008: Wiki System
+
+CREATE TABLE IF NOT EXISTS wiki_page (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    repo_id UUID NOT NULL REFERENCES repo(id) ON DELETE CASCADE,
+    slug TEXT NOT NULL,
+    title TEXT NOT NULL,
+    content TEXT NOT NULL,
+    author_id UUID NOT NULL REFERENCES "user"(id) ON DELETE CASCADE,
+    last_editor_id UUID REFERENCES "user"(id) ON DELETE SET NULL,
+    version INTEGER NOT NULL DEFAULT 1,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ NULL,
+    CONSTRAINT uq_wiki_page_repo_slug UNIQUE (repo_id, slug)
+);
+
+CREATE TABLE IF NOT EXISTS wiki_page_revision (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    page_id UUID NOT NULL REFERENCES wiki_page(id) ON DELETE CASCADE,
+    version INTEGER NOT NULL,
+    title TEXT NOT NULL,
+    content TEXT NOT NULL,
+    editor_id UUID NOT NULL REFERENCES "user"(id) ON DELETE CASCADE,
+    commit_message TEXT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    CONSTRAINT uq_wiki_revision_page_version UNIQUE (page_id, version)
+);
+
+CREATE INDEX idx_wiki_page_repo_id ON wiki_page(repo_id);
+CREATE INDEX idx_wiki_page_slug ON wiki_page(slug);
+CREATE INDEX idx_wiki_page_deleted_at ON wiki_page(deleted_at) WHERE deleted_at IS NULL;
+CREATE INDEX idx_wiki_revision_page_id ON wiki_page_revision(page_id);
+CREATE INDEX idx_wiki_revision_version ON wiki_page_revision(version);