Refactor AI workspace for improved context management and communication integration

- Introduced new commands and skills for workspace memory curation, professional communication, and status reporting.
- Updated existing commands to utilize new skills and improve clarity in instructions.
- Created a new workspace context command to load reusable core and active project profile.
- Enhanced Mattermost inbox integration with support for generic environment variables.
- Established a clear separation between project-independent core logic and project-specific profiles.
- Improved documentation across various files to reflect changes in workflow and command usage.
- Added operational memory management rules to ensure accurate context promotion and correction.
- Updated README and workflow documents to guide users in utilizing the new structure effectively.

.opencode/skills/professional-communication/SKILL.md

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+---
+name: professional-communication
+description: Rewrite rough technical notes into clear, concise, stakeholder-ready professional English while preserving scope and technical meaning.
+compatibility: opencode
+---
+
+## When To Use
+
+Use this skill for manager updates, stakeholder messages, translations, issue clarification, Jira comments, and communication polishing.
+
+## Workflow
+
+1. Identify audience, purpose, scope, and requested action.
+2. Preserve technical meaning and uncertainty.
+3. Make ownership, reproducibility, environment, and next action explicit when relevant.
+4. Use Context, Observation, Action when it improves readability.
+5. Avoid vague comparisons and generic progress language.
+
+## Output Rules
+
+- Write natural professional US English.
+- Keep messages concise enough for workplace chat unless the user asks for a longer document.
+- Do not invent facts, evidence, or commitments.
+