Split 49 modules/suites into independent git repos; untrack from monorepo

Each top-level module/suite folder is now its own private repo on GitHub
(gsinghpal/<name>) and gitea (admin/<name>), with a fresh single initial
commit. The monorepo no longer tracks them (added to .gitignore + git rm
--cached); working-tree files are retained on disk and managed in their
own repos. The monorepo keeps shared root files (CLAUDE.md, docs/, scripts/,
tools/, AGENTS.md, WIP/obsolete dirs) and full history.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

fusion_accounting/fusion_accounting_ai/UPGRADE_NOTES.md

@@ -1,22 +0,0 @@
-# UPGRADE_NOTES — fusion_accounting_ai
-
-## V19.0.1.0.0 (initial — Phase 0 split-out)
-
-### Origin
-Code originally lived in `fusion_accounting/` (the original AI module). Split out
-into this sub-module during Phase 0 of the Enterprise Takeover Roadmap.
-
-### Additions in this version
-- `services/data_adapters/` — DataAdapter base + 4 adapters (bank_rec, reports, followup, assets)
-- `services/tools/*.py` — every tool that called Enterprise-specific APIs refactored through adapters
-- `migrations/19.0.1.0.0/post-migration.py` — reassigns ir_model_data ownership from old module name
-- Multi-company record rule on `fusion.accounting.session` (was missing pre-Phase-0 per CLAUDE.md Known Issues)
-
-### Removed from manifest deps
-- `account_accountant` (was hard dep)
-- `account_reports` (was hard dep)
-- `account_followup` (was hard dep)
-- `mail` (now inherited via `fusion_accounting_core`)
-
-Replaced with: `fusion_accounting_core` (Community-only). Runtime detection of
-Enterprise modules via the data adapter pattern.