docs: fix first-time experience — remove fictional kindling, add recommended schema (#3)

* docs: add recommended brain schema

Full LLM-maintained knowledge base architecture: MECE directory structure,
compiled truth + timeline pages, enrichment pipeline, resolver decision
tree, skill architecture, and cron job recommendations.

* docs: fix first-time experience — remove fictional kindling, add GitHub URL

- Remove all references to data/kindling/ (never existed)
- OpenClaw paste now references https://github.com/garrytan/gbrain
- "Try it" section rewritten as three-act story with user's own data
- Agent picks dynamic query based on imported content
- Step 5 links to recommended schema doc for brain restructuring
- Includes bun install fallback in paste step 1

* chore: bump version and changelog (v0.2.0.1)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

docs/GBRAIN_V0.md

@@ -134,14 +134,14 @@ clawhub install gbrain
 #    - If yes: auto-provisions a new Supabase project
 #    - If no: prompts for connection URL
 #    - Runs schema migration
-#    - Imports bundled kindling corpus (10 PG essays)
+#    - Scans for markdown repos and imports user's content
 #    - Shows live entity/edge extraction animation
 #    - Brain is ready
 
 # 3. From OpenClaw, brain tools are now available:
-#    "What essays do we have about startups?"
+#    "Search the brain for [topic from your data]"
 #    "Ingest my meeting notes from today"
-#    "What does PG say about doing things that don't scale?"
+#    "How many pages are in the brain?"
 ```
 
 Behind the scenes, `clawhub install gbrain`:
@@ -164,9 +164,8 @@ gbrain init --supabase
 #   Try 2: If CLI not installed or not logged in, fallback:
 #          "Enter your Supabase connection URL:"
 #   Then: runs schema migration, verifies pgvector extension
-#   Then: imports kindling corpus (10 PG essays as demo data)
-#   Then: shows live entity extraction animation
-#   Output: "Brain ready. 10 pages imported. Try: gbrain query 'what does PG say about startups?'"
+#   Then: verifies database is ready for import
+#   Output: "Brain ready. Run: gbrain import <your-repo>"
 
 # 3. Import your data
 gbrain import /path/to/markdown/wiki/