👥 README: Replace planning team table with RASCI-based matrix

The previous planning team section was a simplified role/lead table that
did not accurately reflect the division of labor. Several
responsibilities were misattributed or missing entirely (e.g., Lidija's
role in sponsor contracting, Jason's AV oversight, Shaun's broad
accountability scope across most workstreams).

This replaces it with three subsections derived from the team's RASCI
matrix: a team members table (with affiliations and focus areas), a 33-
row responsibility-by-workstream table showing Responsible and
Accountable parties for every deliverable, and the existing comms
channels. Items flagged "discussion needed" in the RASCI are preserved
as-is. Affiliations corrected to use OSAIPO (Open Source & AI Program
Office) throughout.

Assisted-by: Claude Opus 4.6 (1M context)
Signed-off-by: Justin Wheeler <jwheel@redhat.com>

README.md

@@ -55,18 +55,61 @@ It is hosted on the [Fedora Project Forgejo instance](https://forge.fedoraprojec
 ## 👥 Planning team
 
 Flock is organized by volunteers and Red Hat community team staff working under the direction of the [Fedora Council](https://docs.fedoraproject.org/en-US/council/).
+Responsibilities are tracked using a [RASCI matrix](https://en.wikipedia.org/wiki/Responsibility_assignment_matrix) (**R**esponsible, **A**ccountable, **S**upports, **C**onsulted, **I**nformed).
 
-| Role | Lead(s) |
-|------|---------|
-| Overall coordination | Justin Wheeler (FCA) |
-| CfP and schedule | Justin Wheeler, Lidija Balija |
-| Sponsor management | Justin Wheeler, Shaun McCance |
-| Speaker management | Justin Wheeler, Lidija Balija |
-| Social events and venue logistics | Dorota "Dorka" Volavkova |
-| Design | Emma Kidney, Madeline Peck |
-| Marketing and comms | Justin Wheeler, Shaun McCance |
-| Travel sponsorships | Justin Wheeler, Juliana Furlow |
-| Website | Shaun McCance, Jason Brooks (backup), Jess Chitas (redesign) |
+### Team members
+
+| Name | Affiliation | Primary focus |
+|------|-------------|---------------|
+| Dorota "Dorka" Volavkova | RH Events Team | Venue logistics, ITA travel coordination, on-site operations, swag orders |
+| Juliana Furlow | RH Events Team | Event operations support, ITA travel coordination |
+| Jason Brooks | OSAIPO Manager | Oversight and accountability for AV, website, attendee comms |
+| Shaun McCance | CentOS / OSAIPO | Budget management, sponsor contracts and legal, CfP/speaker/schedule accountability |
+| Justin Wheeler | Fedora (FCA) | Sponsor outreach, promotion, volunteer coordination, travel sponsorships, registration, social events |
+| Lidija Balija | OSAIPO (Ops) | CfP platform, schedule building, speaker comms, sponsor contracting and payments |
+| Emma Kidney | Fedora Design | Visual design, branding, swag design, stream overlays |
+| Madeline Peck | Fedora Design | Visual design, branding, swag design |
+| Jess Chitas | OSAIPO (Design) | Flock website redesign |
+
+### Responsibility by workstream
+
+The table below shows who is **Responsible** (owns the work) and **Accountable** (ensures completion) for each workstream.
+The full RASCI matrix with Supports, Consulted, and Informed roles is maintained in the planning team's shared drive.
+
+| Workstream | Responsible | Accountable |
+|------------|-------------|-------------|
+| **General: event planning and budget** | Dorka, Justin | Shaun |
+| **General: volunteers** | Justin, Lidija (supports) | Shaun |
+| **General: session recordings** | *(discussion needed)* | Jason, Shaun, Justin |
+| **General: event recap** | Dorka, Justin | Shaun |
+| **Venue: contract, room block, catering** | Dorka | Shaun |
+| **Venue: AV coordination and setup** | Justin | Jason |
+| **Venue: safety (ISAAC)** | Dorka | Shaun |
+| **Venue: on-site setup (venue, reg desk)** | Dorka | Shaun |
+| **Sponsors: prospectus** | Shaun, Emma/Madeline | Shaun |
+| **Sponsors: outreach and comms** | Justin | Shaun |
+| **Sponsors: contracting and payments** | Lidija | Justin |
+| **Sponsors: on-site fulfillment** | Justin | Shaun |
+| **CfP: platform and promotion** | Lidija | Shaun |
+| **CfP: reviewer recruitment** | Justin, Lidija | Shaun |
+| **CfP: review coordination** | Lidija | Shaun, Justin |
+| **Schedule: drafting and publication** | Lidija | Justin |
+| **Speakers: comms and management** | Lidija | Shaun |
+| **Marketing: website** | *(discussion needed)* | Jason, Shaun, Justin |
+| **Marketing: design (banners, branding)** | Emma/Madeline | *(self-directed)* |
+| **Marketing: design (swag, badges, stream, signage)** | Emma/Madeline | *(self-directed)* |
+| **Marketing: promotion (social, Fedora channels)** | Justin | Shaun |
+| **Marketing: attendee and post-event comms** | Justin | Jason |
+| **Travel: sponsorship form and prioritization** | Justin | Jason |
+| **Travel: ITA coordination and flights** | Dorka | Justin |
+| **Travel: room block arrangements** | Justin | Jason |
+| **Registration: platform and promotion** | Justin | Shaun |
+| **Registration: swag and reg desk orders** | Dorka | Justin |
+| **Registration: on-site printouts and signage** | Dorka | Justin |
+| **Registration: post-event survey** | Justin | *(self-directed)* |
+| **Socials: sponsor dinner** | Justin | Shaun |
+| **Socials: additional evening activities** | Justin | *(self-directed)* |
+| **Socials: main conference social venue** | Dorka | Justin |
 
 ### Communication channels