Refactor workspace structure and documentation

- Deleted obsolete files: obsidian-vault.md, onboarding.md, workspace-model.md
- Updated opencode.json to remove references to deleted files.
- Revised profile.md to clarify the status of legacy paths and communication evidence.
- Adjusted prompts to reflect new file paths and improve clarity.
- Enhanced daily logs with focus, work-items, and blockers properties.
- Updated work-item notes to include systems, workstreams, people, and related properties.
- Improved context maintenance guidelines to ensure accurate and durable project knowledge.
- Refined base filters to exclude template files and ensure only relevant notes are displayed.
- Updated daily templates to ensure proper formatting and consistency.
- Modified workflows to align with the new vault structure and improve context synchronization.

profiles/fidelity/profile.md

@@ -68,7 +68,7 @@ Core Fidelity context remains in:
 - `vault/03-context/process/`
 - `vault/05-decisions/`
 
-Legacy `ai/*` paths remain available only as compatibility fallback during migration.
+Raw communication evidence remains outside the vault under `ai/inbox/` and generated connector folders.
 
 Important domain themes: