feat(gtm): round 1 — truth pass, positioning unification, community on-ramp, demo assets

GTM reviewer round 1 (baseline: positioning 6, funnel 4, open-paid 8,
community 3, launch 3, metrics 2; 3 blockers + 3 majors, all repo-fixable):

- TRUTH: removed the false 'no server required' claim (x3 on the
  website) and stale 'S3/GCS directly' sync claims in both plugin
  manifests — hub-only since v0.3.0
- POSITIONING: one line everywhere ('the open-source Google Drive for
  AI agents' + the attribution/read-analytics wedge) across README,
  website, marketplace.json, plugin.json, SKILL.md; third 'Why' card
  and AGPL-why rationale; nav CTA → Star on GitHub
- COMMUNITY: CONTRIBUTING.md, issue forms + PR template, public dated
  ROADMAP.md, CHANGELOG.md seeded from all 8 releases
- DEMO ASSETS: real product screenshots captured from the seeded demo
  hub (Insights treemap, browse-with-heat, public share page) embedded
  in README + website — no fabricated content anywhere
- DOCS: self-hosting quickstart, metrics plan (north star: active
  shared brains), launch-plan drafts (Show HN/PH/launch week), and
  docs/gtm-handoff.md — the prioritized external-action checklist

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P5cxPQdSGJnjXCYY9GeWXt

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,47 @@
+name: Bug report
+description: Something misbehaved — a sync, the CLI, the hub, or the web UI
+labels: [bug]
+body:
+  - type: input
+    id: version
+    attributes:
+      label: bdrive version
+      description: Output of `bdrive version`
+      placeholder: beardrive v0.7.0
+    validations:
+      required: true
+  - type: input
+    id: os
+    attributes:
+      label: OS / platform
+      placeholder: macOS 15.2 (arm64) / Ubuntu 24.04
+    validations:
+      required: true
+  - type: dropdown
+    id: mode
+    attributes:
+      label: Where does it happen?
+      options:
+        - Syncing client (bdrive CLI / daemon)
+        - Self-hosted hub (bdrive web)
+        - Web UI in the browser
+        - Claude Code plugin / agent hooks
+        - Not sure
+    validations:
+      required: true
+  - type: textarea
+    id: repro
+    attributes:
+      label: What happened, and how do we reproduce it?
+      description: |
+        Steps, expected vs actual. For sync issues, `bdrive status` and
+        `bdrive log -n 20` output help a lot. Never paste tokens or the
+        contents of settings.json.
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: Logs (optional)
+      description: Daemon log lives at `~/.bdrive/volumes/<mount-id>/daemon.log`.
+      render: text

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,27 @@
+name: Feature request
+description: An idea for BearDrive — check ROADMAP.md first, it might already be planned
+labels: [enhancement]
+body:
+  - type: textarea
+    id: problem
+    attributes:
+      label: What are you trying to do?
+      description: The workflow or problem, not just the feature — context makes better designs.
+    validations:
+      required: true
+  - type: textarea
+    id: proposal
+    attributes:
+      label: What would you like BearDrive to do?
+    validations:
+      required: true
+  - type: dropdown
+    id: area
+    attributes:
+      label: Area
+      options:
+        - Sync engine / CLI
+        - Hub / web UI
+        - Agent integration (hooks, plugin, skills)
+        - Sharing / permissions
+        - Other

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,10 @@
+## What & why
+
+<!-- One paragraph: what changes, and the problem it solves. -->
+
+## Checklist
+
+- [ ] `go build ./... && go vet ./... && go test ./...` green
+- [ ] Sync behavior changes have a multi-device test in `internal/syncer`
+- [ ] Frontend changes: `npm run build` re-committed `internal/webapp/static` and `npm run e2e` is green
+- [ ] CLI behavior changes updated both `README.md` and `plugin/skills/beardrive/SKILL.md`