Add document uploads to components (PDFs, manuals, datasheets)

- component_documents table matching device_documents structure
- Upload/delete actions on component detail page
- Documents section in sidebar with file icon, filename, delete on hover
- Devices already had document support; components now match

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/lib/server/db/schema.ts

@@ -170,6 +170,24 @@ export const componentImages = pgTable(
 	(table) => [index('component_images_component_idx').on(table.componentId)]
 );
 
+// ─── Component Documents ────────────────────────────────────────────
+
+export const componentDocuments = pgTable(
+	'component_documents',
+	{
+		id: uuid('id').defaultRandom().primaryKey(),
+		componentId: uuid('component_id')
+			.notNull()
+			.references(() => components.id, { onDelete: 'cascade' }),
+		filePath: text('file_path').notNull(),
+		originalFilename: text('original_filename').notNull(),
+		fileType: text('file_type'),
+		description: text('description'),
+		uploadedAt: timestamp('uploaded_at', { withTimezone: true }).defaultNow().notNull()
+	},
+	(table) => [index('component_documents_component_idx').on(table.componentId)]
+);
+
 // ─── Installation Log (append-only) ─────────────────────────────────
 
 export const installationLog = pgTable(