Fix missing $schema entries - data migration

[tadasant]

Drafted by Claude Code, reviewed by me.

Summary

This PR adds a data migration to fix 17 server entries that were published with empty $schema fields.

This is a pure data migration - no code changes are needed because:

• Validation for the $schema field was already added in commit 6d2001b on 2025-10-07
• That validation was deployed to production on 2025-10-14 with v1.3.0 (PR #668)
• All 17 affected entries were published before deployment (see dates below)

Affected Entries (17 total)

Server	Version	Published
io.github.ruvnet/claude-flow	2.0.0-alpha.104	2025-09-10
io.github.ruvnet/claude-flow	2.0.0-alpha.105	2025-09-10
io.github.ruvnet/ruv-swarm	1.0.18	2025-09-10
io.github.ruvnet/ruv-swarm	1.0.19	2025-09-10
travel.kismet/mcp-server	0.0.0	2025-09-10
io.github.jkakar/cookwith-mcp	1.0.0	2025-09-11
io.github.jkakar/cookwith-mcp	1.0.1	2025-09-12
io.github.jkakar/cookwith-mcp	1.0.2	2025-09-12
io.github.OtherVibes/mcp-as-a-judge	0.3.12	2025-09-18
io.github.OtherVibes/mcp-as-a-judge	0.3.13	2025-09-18
io.github.OtherVibes/mcp-as-a-judge	0.3.14	2025-09-18
io.github.OtherVibes/mcp-as-a-judge	0.3.20	2025-09-20
io.github.Skills03/scrimba-teaching	1.0.1	2025-09-21
io.github.Skills03/scrimba-teaching	1.1.0	2025-09-21
io.github.Skills03/scrimba-teaching	1.2.0	2025-09-21
io.github.toby/mirror-mcp	0.0.4	2025-10-01
io.github.antuelle78/weather-mcp	1.0.0	2025-10-09 ⚠️

Note on outlier: io.github.antuelle78/weather-mcp was published on 2025-10-09, which is after the validation code was committed (2025-10-07) but before it was deployed (2025-10-14). This confirms the entries slipped through due to the gap between merge and deployment.

Dry Run SQL

To verify affected rows before running the migration:

SELECT server_name, version, value->>'$schema' as schema_value
FROM servers
WHERE (server_name, version) IN (
    ('io.github.OtherVibes/mcp-as-a-judge', '0.3.12'),
    ('io.github.OtherVibes/mcp-as-a-judge', '0.3.13'),
    ('io.github.OtherVibes/mcp-as-a-judge', '0.3.14'),
    ('io.github.OtherVibes/mcp-as-a-judge', '0.3.20'),
    ('io.github.Skills03/scrimba-teaching', '1.0.1'),
    ('io.github.Skills03/scrimba-teaching', '1.1.0'),
    ('io.github.Skills03/scrimba-teaching', '1.2.0'),
    ('io.github.antuelle78/weather-mcp', '1.0.0'),
    ('io.github.jkakar/cookwith-mcp', '1.0.0'),
    ('io.github.jkakar/cookwith-mcp', '1.0.1'),
    ('io.github.jkakar/cookwith-mcp', '1.0.2'),
    ('io.github.ruvnet/claude-flow', '2.0.0-alpha.104'),
    ('io.github.ruvnet/claude-flow', '2.0.0-alpha.105'),
    ('io.github.ruvnet/ruv-swarm', '1.0.18'),
    ('io.github.ruvnet/ruv-swarm', '1.0.19'),
    ('io.github.toby/mirror-mcp', '0.0.4'),
    ('travel.kismet/mcp-server', '0.0.0')
)
AND (value->>'$schema' = '' OR value->>'$schema' IS NULL);

Result against prod:

app=> SELECT server_name, version, value->>'$schema' as schema_value
FROM servers
WHERE (server_name, version) IN (
    ('io.github.OtherVibes/mcp-as-a-judge', '0.3.12'),
    ('io.github.OtherVibes/mcp-as-a-judge', '0.3.13'),
    ('io.github.OtherVibes/mcp-as-a-judge', '0.3.14'),
    ('io.github.OtherVibes/mcp-as-a-judge', '0.3.20'),
    ('io.github.Skills03/scrimba-teaching', '1.0.1'),
    ('io.github.Skills03/scrimba-teaching', '1.1.0'),
    ('io.github.Skills03/scrimba-teaching', '1.2.0'),
    ('io.github.antuelle78/weather-mcp', '1.0.0'),
    ('io.github.jkakar/cookwith-mcp', '1.0.0'),
    ('io.github.jkakar/cookwith-mcp', '1.0.1'),
    ('io.github.jkakar/cookwith-mcp', '1.0.2'),
    ('io.github.ruvnet/claude-flow', '2.0.0-alpha.104'),
    ('io.github.ruvnet/claude-flow', '2.0.0-alpha.105'),
    ('io.github.ruvnet/ruv-swarm', '1.0.18'),
    ('io.github.ruvnet/ruv-swarm', '1.0.19'),
    ('io.github.toby/mirror-mcp', '0.0.4'),
    ('travel.kismet/mcp-server', '0.0.0')
)
AND (value->>'$schema' = '' OR value->>'$schema' IS NULL);
             server_name             |     version     | schema_value 
-------------------------------------+-----------------+--------------
 io.github.toby/mirror-mcp           | 0.0.4           | 
 io.github.jkakar/cookwith-mcp       | 1.0.0           | 
 io.github.ruvnet/ruv-swarm          | 1.0.19          | 
 io.github.jkakar/cookwith-mcp       | 1.0.1           | 
 io.github.ruvnet/ruv-swarm          | 1.0.18          | 
 io.github.antuelle78/weather-mcp    | 1.0.0           | 
 io.github.jkakar/cookwith-mcp       | 1.0.2           | 
 io.github.OtherVibes/mcp-as-a-judge | 0.3.12          | 
 travel.kismet/mcp-server            | 0.0.0           | 
 io.github.Skills03/scrimba-teaching | 1.0.1           | 
 io.github.OtherVibes/mcp-as-a-judge | 0.3.20          | 
 io.github.Skills03/scrimba-teaching | 1.2.0           | 
 io.github.ruvnet/claude-flow        | 2.0.0-alpha.105 | 
 io.github.ruvnet/claude-flow        | 2.0.0-alpha.104 | 
 io.github.Skills03/scrimba-teaching | 1.1.0           | 
 io.github.OtherVibes/mcp-as-a-judge | 0.3.14          | 
 io.github.OtherVibes/mcp-as-a-judge | 0.3.13          |