docs: follow-up Qodo fixes for PR #21 (README snippet + comment accuracy)

[JohnMcLear]

Follow-up to #21 (already merged) — Qodo flagged two doc/comment issues seconds before the squash-merge, so my fix commit didn't make the cut. Cherry-picking it now on top of main.

What Qodo flagged

1. README snippet contradicted its preceding comment — comment talked about "disabling the passthrough" but the snippet showed `enablePluginPadOptions: true` (enable). Could lead operators to copy-paste the wrong value.
2. `pad-select-server.js` (and `pad-toggle-server.js`) opt-out comment said the runtime-disabled branch means "explicit operator opt-out", but `runtimeFlagEnabled = (root.enablePluginPadOptions === true)` is also `false` when the flag is absent (older 3.x cores pre-flip, or operators who removed the key). The framing misleads anyone diagnosing why `padWideSupported` is off.

Fix

Both findings tagged in 378997b:

• README: rewrote so the `true` snippet is unambiguously the explicit opt-in case for older 3.x cores; note that `false` is the disable case.
• Server comments: reworded to cover both branches — "absent on pre-flip cores, or explicitly false on current ones".

Test plan

• `pnpm test` — 104 passing (mocha)
• No behavioral change — comments / README only

🤖 Generated with Claude Code

[qodo-code-review]

Qodo reviews are paused for this user.

Troubleshooting steps vary by plan Learn more →

On a Teams plan?
Reviews resume once this user has a paid seat and their Git account is linked in Qodo.
Link Git account →

Using GitHub Enterprise Server, GitLab Self-Managed, or Bitbucket Data Center?
These require an Enterprise plan - Contact us
Contact us →

[qodo-free-for-open-source-projects]

Review Summary by Qodo

Clarify padOptions flag behavior in docs and comments

📝 Documentation

Walkthroughs

Description

• Clarify README snippet to unambiguously show explicit opt-in for older 3.x cores
• Distinguish between absent flag and explicitly false in server comments
• Improve accuracy of runtime flag behavior documentation
• No behavioral changes, documentation and comments only

Diagram

flowchart LR
  A["README settings.json snippet"] -->|"reworded for clarity"| B["Explicit opt-in for older 3.x cores"]
  C["pad-select-server.js comment"] -->|"expanded scope"| D["Covers absent flag and explicit false"]
  E["pad-toggle-server.js comment"] -->|"improved framing"| F["Accurate runtime flag behavior"]
  B --> G["No behavior change"]
  D --> G
  F --> G

Loading

File Changes

1. pad-select-server.js 📝 Documentation +4/-3

Clarify runtime flag false branch scenarios

• Updated comment to clarify that runtimeFlagEnabled is false when flag is absent (pre-flip cores)
 or explicitly false (current cores)
• Changed framing from "explicit operator opt-out" to "runtime flag not enabled" for accuracy
• Improved maintainability by covering both false-branch scenarios

pad-select-server.js

---

2. pad-toggle-server.js 📝 Documentation +4/-4

Improve runtime flag absence vs explicit false distinction

• Rewrote comment to distinguish between absent flag on pre-flip cores and explicitly false on
 current cores
• Changed "opted out" language to "flag isn't enabled" for better accuracy
• Clarified that the no-op behavior applies to both absence and explicit false cases

pad-toggle-server.js

---

3. README.md 📝 Documentation +5/-3

Clarify padOptions flag opt-in requirements and defaults

• Rewrote settings requirement paragraph to clearly state settings.enablePluginPadOptions === true
 requirement
• Clarified that current cores default to true, while older 3.x cores need explicit opt-in
• Updated settings.json code comment to distinguish between opt-in for older cores and explicit
 disable for current cores
• Added note that the flag should be omitted on current cores since it's already the default

README.md

---

[qodo-free-for-open-source-projects]

Code Review by Qodo

🐞 Bugs (2) 📘 Rule violations (0)

1. Misleading settings key path 🐞 Bug ⚙ Maintainability

Description

README states the requirement as settings.enablePluginPadOptions === true, which can be misread as
needing a nested settings object in settings.json; the implementation actually reads the top-level
enablePluginPadOptions key from the settings root. This can lead to operators configuring the
wrong JSON shape and pad-wide support silently staying disabled.

Code

README.md[187]

Evidence

The README requirement uses a dotted path, but server code/tests show the value is expected as a
top-level enablePluginPadOptions property on the settings root object passed to loadSettings.

README.md[185-196]
pad-toggle-server.js[77-83]
test/pad-toggle.js[98-113]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

### Issue description
The README uses the dotted path `settings.enablePluginPadOptions` in a way that may be interpreted as a nested JSON object, but the plugin reads `enablePluginPadOptions` as a top-level key from Etherpad’s settings root. This ambiguity can cause misconfiguration.

### Issue Context
In server code, `args.settings` is the root settings object and `enablePluginPadOptions` is read directly from it.

### Fix Focus Areas
- README.md[185-196]
- pad-toggle-server.js[77-83]
- test/pad-toggle.js[98-113]

### Suggested fix
In README, replace wording like `settings.enablePluginPadOptions === true` with explicit operator-facing phrasing, e.g.:
- “Requires `enablePluginPadOptions: true` in settings.json (top-level key) on older cores.”
Optionally keep the dotted form but explicitly clarify it maps to the top-level settings.json key.

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

---

2. Warning mislabels missing flag 🐞 Bug ◔ Observability

Description

Server comments now correctly describe the runtime-disabled case as `settings.enablePluginPadOptions
!== true` (missing on some cores or explicitly false), but the client-side degradation warnings
still hard-code “settings.enablePluginPadOptions is false”. This can misdirect debugging when the
key is absent/undefined rather than explicitly false.

Code

pad-select-server.js[R117-120]

Evidence

The updated server comment explicitly calls out that the disabled condition includes an absent
setting, but the client warning message still asserts the setting 'is false'.

pad-select-server.js[113-123]
pad-toggle.js[160-185]
pad-select.js[161-181]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

### Issue description
Client-side degradation warnings state the runtime flag “is false” even though the server-side gating condition is `!== true` (covers missing/undefined and false). This makes warnings less accurate.

### Issue Context
Server computes `runtimeFlagEnabled` via `root.enablePluginPadOptions === true`, so missing keys yield `false` and are indistinguishable from explicit `false`.

### Fix Focus Areas
- pad-select-server.js[113-123]
- pad-toggle.js[160-185]
- pad-select.js[161-181]

### Suggested fix
Update the warning strings in `pad-toggle.js` and `pad-select.js` to say “settings.enablePluginPadOptions is missing or false (not true)” (or similar), matching the server comment/logic. Avoid implying an explicit boolean `false` when the value might be absent.

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

---