Keep party energy up and route the keepsake to a config output dir

- SKILL.md: add "Keep It Feeling Like a Party" guidance so the room stays
  fun and engaging and doesn't drift into Q&A or a report
- Keepsake now writes to {workflow.output_dir}; step 2 resolves
  {output_folder} and {date}
- customize.toml: add output_dir = {output_folder}/party-mode, overridable
  in team/user TOML (matches the bmad-brainstorming output pattern)

src/core-skills/bmad-party-mode/SKILL.md

@@ -25,7 +25,7 @@ If a round comes back feeling like four essays stapled together, you missed the
 ## Setup
 
 1. **Resolve customization:** `python3 {project-root}/_bmad/scripts/resolve_customization.py --skill {skill-root} --key workflow`. On failure, read `{skill-root}/customize.toml` directly and use its defaults. Then run each `{workflow.activation_steps_prepend}` entry, and hold each `{workflow.persistent_facts}` entry as session-long context (`file:`-prefixed entries are paths/globs under `{project-root}` whose contents load as facts; `skill:`-prefixed entries name a skill to consult; all others are facts verbatim).
-2. Load `{project-root}/_bmad/core/config.yaml`: greet with `{user_name}`, speak in `{communication_language}`.
+2. Load `{project-root}/_bmad/core/config.yaml`: greet with `{user_name}`, speak in `{communication_language}`, and resolve `{output_folder}` and `{date}` for the wrap-up keepsake.
 3. **Resolve the active roster:** `python3 {skill-root}/scripts/resolve_party.py --project-root {project-root} --skill {skill-root}`. It returns the active group's full member detail (the `{workflow.default_party}` group if set, else the installed agents), the other group names, and the resolved `{workflow.party_mode}`. If the group carries a `scene`, open already in it and let it shape how the room behaves (who's loose or hostile, who pushes hardest); the same members play differently from one scene to the next. If flagged `open_cast`, cast the room on the fly from the universe its `scene` names — choosing who fits the moment and varying them as the topic shifts; listed members, if any, anchor the room. If `installed_agents_resolved` is false or codes come back `unresolved`, tell the user and carry on with what returned.
 4. **Roster overrides:**
    - If the invocation names a cast or characters inline (e.g. "include the main cast of Cheers circa 1982"), that named cast *is* the roster for this session — conjure them from what you know, go straight into the party, and once it's rolling offer once to save them as a custom party (the `references/create-party.md` write path), without stalling. Ephemeral; this path skips the script.
@@ -68,6 +68,10 @@ The user steers — whatever they raise, serve the conversation: any combination
 - **User's gone quiet?** Ask straight: keep going, switch topics, or wrap up?
 - **A flat turn?** Don't retry it — move on; the user will ask for more if they want it.
 
+## Keep It Feeling Like a Party
+
+It is your goal to keep party mode feeling like a party, a good party. fun, engaging, simulating, insightful, or whatever the user came for. If the energy flags, or it drifts into a Q&A, or it feels like work, course-correct: bring in a new voice, crack a joke, call out the vibe and ask what they want to do about it. Inject some randomness and unexpectedness occasionally. Don't let it become a report. The user can always ask for a summary or key takeaways if they want them; you don't have to force it into the flow. Let it be what it is: a conversation between these people, in this scene, on this topic, in this scenario.
+
 ## Wrapping Up
 
-When the user signals they're done, give a quick read-back of the best takeaways and offer them a keepsake: a single self-contained HTML document of the session to keep. If they want it, make it genuinely nice rather than a transcript dump — lay the conversation out by persona (their icons, names, voice), and reach for inline SVG and light animation where it lifts the piece. Write it as a standalone `.html` to the project root, or wherever they ask. Then run `{workflow.on_complete}` if non-empty (a string scalar is one instruction, an array is a sequence run in order) and drop back to normal mode. Read the room; don't wait for a magic word.
+When the user signals they're done, give a quick read-back of the best takeaways and offer them a keepsake: a single self-contained HTML document of the session to keep. If they want it, make it genuinely nice rather than a transcript dump — lay the conversation out by persona (their icons, names, voice), and reach for inline SVG and light animation where it lifts the piece. Write it as a standalone `.html` into `{workflow.output_dir}/` (a `{date}`-stamped, topic-named file), or wherever they ask. Then run `{workflow.on_complete}` if non-empty (a string scalar is one instruction, an array is a sequence run in order) and drop back to normal mode. Read the room; don't wait for a magic word.

src/core-skills/bmad-party-mode/customize.toml

@@ -46,6 +46,11 @@ default_party = ""
 #   "agent-team" persistent agent team addressing each other directly (Claude Code only)
 party_mode = "session"
 
+# Where the optional end-of-session keepsake is written. The self-contained HTML
+# document lands in `{output_dir}/`. `{output_folder}` and `{date}` come from core
+# config; point this elsewhere in your team/user override to redirect keepsakes.
+output_dir = "{output_folder}/party-mode"
+
 # Executed when the party wraps (after the read-back, before dropping to normal
 # mode). String scalar = one instruction; array = instructions run in order.
 on_complete = ""