Users cannot send messages in encrypted rooms when `m.room.message` is inaccessible via power levels

[kfiven]

Discussed in #3025

^{Originally posted by timedoutuk July 17, 2026}

Issue Description

When encryption is enabled, and m.room.message's power level is above users' own (e.g. set to 100), cinny prevents standard users sending any messages at all:

Expected Behavior

Cinny should allow posting (encrypted) messages even if m.room.message (unencrypted message) is disallowed

Actual Behavior

Cinny prevents messages being composed in the first place

Reproduction Steps

1. Create a room
2. Enable encryption
3. Set m.room.encrypted to 0 (so all users can send)
4. Set m.room.message to anything but 0 (so regular users can't send unencrypted messages)

Environement

- OS: Arch Linux
- Browser: Firefox
- Cinny Web version: v4.12.3 (app.cinny.in)

Relevant Logs

No response

Additional context

No response

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