feat: add feature to speak with the AI and create report from contexts

backend/internal/database/migrations/000005_reports.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS reports;

backend/internal/database/migrations/000005_reports.up.sql

@@ -0,0 +1,9 @@
+CREATE TABLE reports (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    summary_id UUID REFERENCES summaries(id) ON DELETE SET NULL,
+    context_excerpt TEXT NOT NULL,
+    question TEXT NOT NULL,
+    answer TEXT NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

backend/internal/database/migrations/000006_reports_status.down.sql

@@ -0,0 +1,4 @@
+ALTER TABLE reports
+  DROP COLUMN IF EXISTS status,
+  DROP COLUMN IF EXISTS error_msg,
+  ALTER COLUMN answer DROP DEFAULT;

backend/internal/database/migrations/000006_reports_status.up.sql

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+ALTER TABLE reports
+  ALTER COLUMN answer SET DEFAULT '',
+  ADD COLUMN status    VARCHAR(20) NOT NULL DEFAULT 'done',
+  ADD COLUMN error_msg TEXT        NOT NULL DEFAULT '';