feat: complete v0.6 content and attachment experience

lib/db.ts

@@ -88,6 +88,10 @@ CREATE TABLE IF NOT EXISTS error_events (
   id INTEGER PRIMARY KEY, scope TEXT NOT NULL, message TEXT NOT NULL, context_json TEXT,
   created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
+CREATE TABLE IF NOT EXISTS tag_aliases (
+  alias TEXT PRIMARY KEY COLLATE NOCASE, canonical TEXT NOT NULL COLLATE NOCASE,
+  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
 `);
 
 db.exec("INSERT OR IGNORE INTO source_members(source_id,user_id,role) SELECT id,user_id,'owner' FROM sources");
@@ -117,6 +121,10 @@ applyColumnMigration(16, "sources", "last_connection_error", "ALTER TABLE source
 applyColumnMigration(17, "posts", "remote_url", "ALTER TABLE posts ADD COLUMN remote_url TEXT");
 db.prepare("INSERT OR IGNORE INTO schema_migrations(version) VALUES(18)").run();
 db.prepare("INSERT OR IGNORE INTO schema_migrations(version) VALUES(19)").run();
+applyColumnMigration(20, "sources", "attachment_storage_mode", "ALTER TABLE sources ADD COLUMN attachment_storage_mode TEXT NOT NULL DEFAULT 'remote'");
+applyColumnMigration(21, "sources", "attachment_cache_limit_bytes", "ALTER TABLE sources ADD COLUMN attachment_cache_limit_bytes INTEGER NOT NULL DEFAULT 104857600");
+applyColumnMigration(22, "sources", "attachment_cache_error", "ALTER TABLE sources ADD COLUMN attachment_cache_error TEXT");
+db.prepare("INSERT OR IGNORE INTO schema_migrations(version) VALUES(23)").run();
 
 const admin = process.env.ADMIN_USERNAME;
 const adminPassword = process.env.ADMIN_PASSWORD;

lib/tags.ts

@@ -0,0 +1,19 @@
+import { db } from "@/lib/db";
+
+export function canonicalTag(tag: string) {
+  const clean = tag.trim().replace(/^#/, "");
+  const alias = db.prepare("SELECT canonical FROM tag_aliases WHERE alias=? COLLATE NOCASE").get(clean) as { canonical: string } | undefined;
+  return alias?.canonical || clean;
+}
+
+export function canonicalTags(tags: string[]) { return [...new Set(tags.map(canonicalTag).filter(Boolean))]; }
+
+/** Removes only known tags from normal Markdown lines; fenced code is always untouched. */
+export function withoutInlineTags(content: string, tags: string[]) {
+  let fenced = false;
+  return content.split("\n").map((line) => {
+    if (/^\s*```/.test(line)) { fenced = !fenced; return line; }
+    if (fenced) return line;
+    return tags.reduce((text, tag) => text.replace(new RegExp(`(^|\\s)#${tag.replace(/[.*+?^${}()|[\\]\\\\]/g, "\\$&")}(?=\\s|$|[，。！？、,.!?])`, "gu"), "$1").replace(/ {2,}/g, " "), line);
+  }).join("\n");
+}