Remove private memory file and harden .gitignore

Removes accidentally tracked .claude/ memory directory and adds
comprehensive gitignore rules for AI agent state, draft posts,
and private docs.

.claude/projects/-home-hoornet-projects-wrystr/memory/project_podcast_idea.md

@@ -1,13 +0,0 @@
----
-name: Podcast playback idea
-description: Background audio podcast playback in Wrystr, inspired by Fountain.fm's Nostr integration
-type: project
----
-
-**Idea: In-app podcast listening for Nostr-native podcasts**
-
-Fountain.fm publishes podcast episodes on Nostr. Wrystr could support playback the other way around — discover and listen to podcasts from within Wrystr.
-
-**Why:** Desktop app is perfect for background audio. Podcast + Nostr is a growing niche (Fountain.fm, Wavlake). Value4Value streaming sats would tie into existing NWC/zap infrastructure. Differentiator vs other Nostr clients.
-
-**How to apply:** When scoping future media features, consider this alongside the video/media feed idea. Key pieces: NIP-94 media metadata, podcast:item tags, persistent audio player (mini-player bar), background playback, V4V streaming sats via NWC. Research Fountain.fm's Nostr event structure before implementing.

.gitignore

@@ -27,10 +27,19 @@ OPENSATS_APPLICATION.md
 PHASE6.md
 RENAME_ARTICLE_DRAFT.md
 TODO.md
+NOSTR_POST_*.md
+SHELLEY_SPEC.md
+docs/
 test/accounts.json
 
-# Skills / agents
+# AI agent / editor state
 .agents/
+.claude/
+.omc/
+.pi/
+.windsurf/
+.impeccable.md
+skills-lock.json
 
 # Editor directories and files
 .vscode/*