feat: boutons haut/bas de page dans la sidebar article

database/interactions_create.sql

@@ -0,0 +1,28 @@
+-- Réactions visiteurs (cookie anti-doublon)
+CREATE TABLE article_reactions (
+    id            SERIAL PRIMARY KEY,
+    article_uuid  TEXT    NOT NULL,
+    reaction_type TEXT    NOT NULL CHECK (reaction_type IN ('useful', 'important', 'interesting')),
+    visitor_hash  TEXT    NOT NULL,
+    created_at    TIMESTAMP NOT NULL DEFAULT NOW(),
+    UNIQUE (article_uuid, reaction_type, visitor_hash)
+);
+CREATE INDEX ON article_reactions (article_uuid);
+
+-- Commentaires avec vérification par email
+CREATE TABLE comments (
+    id                SERIAL  PRIMARY KEY,
+    article_uuid      TEXT    NOT NULL,
+    author_name       TEXT    NOT NULL,
+    author_email      TEXT    NOT NULL,
+    content           TEXT    NOT NULL CHECK (LENGTH(content) <= 2000),
+    verification_code TEXT,
+    verified          BOOLEAN NOT NULL DEFAULT FALSE,
+    published         BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at        TIMESTAMP NOT NULL DEFAULT NOW(),
+    ip_address        TEXT,
+    user_agent        TEXT
+);
+CREATE INDEX ON comments (article_uuid, verified, published);
+CREATE INDEX ON comments (verification_code)
+    WHERE verified = FALSE AND verification_code IS NOT NULL;