feat: implement system statistics tracking, commit management controllers, and associated database migrations

db/migrations/0000014_system_statistics.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS system_statistics CASCADE;

db/migrations/0000014_system_statistics.up.sql

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+CREATE TABLE IF NOT EXISTS system_statistics (
+    id UUID PRIMARY KEY DEFAULT uuidv7(),
+    date DATE UNIQUE NOT NULL,
+    
+    -- Cumulative stats
+    total_users INT NOT NULL DEFAULT 0,
+    total_projects INT NOT NULL DEFAULT 0,
+    total_commits INT NOT NULL DEFAULT 0,
+    total_submissions INT NOT NULL DEFAULT 0,
+    total_medias INT NOT NULL DEFAULT 0,
+    total_wikis INT NOT NULL DEFAULT 0,
+    total_entities INT NOT NULL DEFAULT 0,
+    total_geometries INT NOT NULL DEFAULT 0,
+    total_storage_bytes BIGINT NOT NULL DEFAULT 0,
+
+    -- Daily stats
+    new_users INT NOT NULL DEFAULT 0,
+    new_projects INT NOT NULL DEFAULT 0,
+    new_commits INT NOT NULL DEFAULT 0,
+    new_submissions INT NOT NULL DEFAULT 0,
+    new_medias INT NOT NULL DEFAULT 0,
+    new_wikis INT NOT NULL DEFAULT 0,
+    new_entities INT NOT NULL DEFAULT 0,
+    new_geometries INT NOT NULL DEFAULT 0,
+    new_storage_bytes BIGINT NOT NULL DEFAULT 0,
+
+    created_at TIMESTAMPTZ DEFAULT now()
+);